You will mostly watch the MC spectate during the most part of the major plot, but he would not shy away from getting into the mix of things if he has to, which is usually near the end of the arc.

Other than that, he spends most of his time experimenting and making cards. Later on, he starts having some nice moments with his monsters that developed intelligence through his unique methods.

The author still tries to make the MC not too overly OP and he can still improve, even though the attempt is really poor by not really showing how OP others are.

In the current latest raw chapter, 517, he is on summer vacation after finishing his first year.

The author started out small. Most HP/Pokemon/Yugioh references were surface level. Around chapter 50 he starts branching out and having fun. His emotions/ideas translates well to paper.

At first I didn't like how he wrote Harry or Ron. BUT the characters do get better and more enjoyable as they diverge.

Alchemy and Yugioh duels are a great idea. Really balances out pacing (though some battles take to long / can be skipped). The Pokemon are very cute

In most CN novels the author avoids the main plot to elongate the story. This works in this novel, it reads like a HP book. The Demon God (like Voldemort) is omnipresent but not involved.

The MTL is also pretty decent so I suggest binging. Pokemon names arent translated but I found it pretty easy to figure out

I liked the cute moments with the cards

I think the harem is well done. They are 12 so it's mostly crushes that could develop over the course of the story.

I think the "otherworld information" is done SUPER well here. To summarize, post-war teaching is improved by the MC. He doesn't know more just has learnt more efficiently with modern tricks. This makes the MC come off as very smart without ruining other characters/setting.

Some teachers / situations felt so s*upid to me. I wanted to bit*h to them through the protagonist multiple times.

Dark is a fun protagonist after they stopped punishing him for being interested in things (that got dropped quickly, Thank God)

It is actually convenient, because the first Pokemon he gets is an Eevee. Depending on the method, he can get a variety of evolutions.

He is supposed to be a Demon God, who is like a hidden boss that comes after the Demon King that is though to be the final boss for most of the game. He technically has a system that shows his points in the 7 Deadly Sins: Wrath, Pride, Lust, Greed, Gluttony, Sloth, and Envy. He is asked to raise them to awaken his Demon God bloodline, but all the system does is report the numbers and changes based on his behavior. There is no punishment for not raising them, and as long as he doesn't go above 120, there will be no permanent change, and they can be reduced by behaving against the sins. That is basically the meaning of the title. Darke starts by trying to live a life without any of the sins.

If that was it, then there almost wouldn't be a point in having the sins as part of the novel, but very quickly, Darke realizes that the excess sin points can be drained from his soul as a type of special energy that he can use to create special power-up cards and monsters. It becomes a balancing act. On one hand he can't let them rise too high or he'll become a Demon God, on the other he can only use them to make cards if they are over a certain level. By the end of his first year, there is little fear that he will fall to the sins, though he still has to be careful because there is a limit on how much he can drain to use per month, or he might damage his soul.

White is son of a Hero that died in the war against demons, so everyone expects a lot out of him. At first he doesn't really live up to that and just messes around with his friend Robert (Ron parody). He does snap out of it when he realizes that not only Darke, who he is often compared to, but a lot of his classmates are leaving him in the dust. He start to dedicate himself to getting stronger, though it takes a while to make up for his lost time. His goal is to eventually defeat Darke, but as a rival, not an enemy. As the "protagonist" of the story, he does end up getting involved in a lot of trouble. Darke is actually more of a bystander to most of these, though he does get involved to patch things up occasionally.

the pacing is dreadful: nothing happens... And it goes slow, like I would rather be studying kinds of slow...

the guy goes and starts doing some sketchy stuff to avoid becoming the evil god. Nobody bats an eye because of good behaviour. Another fictional universe with brain dead people...

girls fall in love with the dude left, right and centre because he basically ignores them while doing his sketchy stuff

Of course nobody actually interacts with him too much as he is practicing detachment and can’t become too worked up about anything, like a good blank canvas... heck even your average harem MC has more personality than this dude... I never thought I would miss Kirito from SAO...

Tl;dR : waiting for Godot, web novel edition

Digimon:
Demidevimon
Gatomon
Leomon
Renamon
Agumon

Pokemon:
Eeve
Sylveon
Hawlucha
Honedge
Misdreavus
Munchlax
Applin
Meowth (Alola)
Popplio
miltank
Shuckle
Ditto

Yugioh
Version of blue eyes white dragon
Vampire Fraulein.

Original:
tr*sh slime.
Magic secretary.

The relationship of dark with his spirit is symbiotic and that not only dark affects his monsters but his monster also affects him since Eeve had a talent as a prophet and he developed or awakened this ability in dark that is why dark needs more demon monster since he has 3 monster with the quality of (brave) and only 1 demon monster.

since currently in the raw he 600 and 601 is obviously about the level of anyone from his year and he can no longer enjoy the duel with the people of the same year as now he has started to relax due to his enormous power but I hope he can compose himself as I don't want dark's first real loss in a duel to be because he lost all enthusiasm to fight

Now he's in an internal debate about his plays and I hope Dark can be merciless so he doesn't have to hold back and focus on defeating his enemy no matter how big the difference is.

Hopefully Dianna (For being her friend and having a deck with enough power to connect with dark and motivate him) or Sara (She and her treacherous strategies) can give him back the hope of having a fun duel with people his own age

Dark steals notHarry's potential love interests, memoranda from his family, and makes notHarry almost develop an inferiority complex due to all the public comparisons between them

-Dark created Fusion card but later it was revealed that there are many types of fusion spell so he will have to continue studying in the future if he wants to maybe create Mastermon

-The advance of creating evolved cards of sins that needs studies of ruins and things related to gods to create Sins card to evolve your monsters to new levels
So far the farthest it has come is Pride 4 but it can only be used with certain monsters and it is the only level 4 Sins card but it is still considered defective.

-It is the power of the bonds they have the possibility to replace the sin cards since when pride 4 gatomon is used I need the magic power of dark and its connection to evolve into angewomon

-If this is possible, imagine the reaction of people and your opponent if dark evolving his monster without the need for cards (Removed a great weakness from his deck) or even recreate contact fusion to bring his fusion monster

-Although I hope this only applies to the digimons and not to the other monsters of Dark

-There is also the mention of ritual and another type of summon that has not been mentioned so far so there is still more development for Dark since Blue eyes has good material for ritual summon and Professor Silver's mention that elves have secret techniques like dual chanted

-In the current chapters it seems that we will see the appearance of other gods since the gods can have influence on the intelligence of creatures such as monsters either from dungeon or dark for which dark could make an advance on the Sins cards or create another God Armed card.

Things not related to duels

-Maybe black clover reference with spirit dive if possible with Dark and the spirit that he gained from Aurora's mother

-Dark won a book to learn fire magic, maybe he can become a magician that his incredible reserves thanks to the power of demon god allow him to destroy someone with magic

-We still don't know everything about alchemy and refinement of armed cards so maybe Dark could in the future do something similar to fullmetal alchemist or Hajime nagumo of arifureta

-Also that chakra or qi thing that is mentioned is the only power of humans than the 7 is considered a new magic imagine if Dark had something like the wortless of DxD or Copy without restrictions (referring to Eeve pokemon with more evolutions or ditto that can be anything)

Dark is becoming an Businessman as he is now laying the foundations for his own company with a focus on the monster duel.

His first Dragon Monster (I don't need to say more)

Have the power of money

The ability to look down on someone and win

Although, unlike Kaiba, he has achieved what he could not, which is to win a tournament that he himself created.

As for Kaito, his resemblance to dark is more in kaito's calmer personality compared to kaiba

-The vision of most of the people of the same year taking him as an omnipotent being instead of a human being who also has defects and weakness

-The brute force of his deck that makes him surpass all his classmate in terms of deck power and his constant growth will leave him alone since he has no one from the same year that he can call a rival so this will produce loneliness and boredom as pandora suffer and told in one of the initial chapters that are translated in novelupdate

(Since dark began to worry about his plays when he returned to face his classmate so that the duel was not so short even though he was able to avoid that mentality he admitted to having lost ability due to being able to depend on raw power)

-Being a noble (This is a possible threat to dark) since dark comes from the modern world I do not think that he is so aware of how to be a noble and how the relationships of the nobility could create rumors against him and attack him just because he does not I worry about it

-The intelligence of his monsters something that Dark himself has questioned since he can only say that time will tell if it was correct to increase the intelligence and independence of the monster from him or no.

only Dianna, Sara, (Eudora we don't know her true capacity), White, Emma

I put Dianna on top of sara because her deck is about power

Sara was able to give dark some true fun back but still failed to face his brute force.
(For yugioh first generation lovers this will surely be a fun duel / chapter to read)

Eudora the power of a possible obsessive yandere has yet to be seen

White and Emma both lost to dark in the silver cup but I see white with more chances because Emma depends on her luck on her deck

Although it will only be possible if dark has an initial bad hand

Now it is under investigation:
Pokemon:
-Virizion because dark got a holy sword with herb and light properties

-Aerodactyl from a biological orb that he obtained in a dungeon

Digimon
-Dianamon (lunamon)

-My expectaction that the author has given Digimon protagonists a Dark but I wonder if he will give him some of the second generation and if he does what will it be since Dark's knowledge goes more through the first 4 digimon until frontier I think and I wonder if he does it give in the future wormmon to Dark since he already gave him the iconic digimon of the first digimon and iconic digimon of the girl protagonist of the third generation so maybe he will give him the digimon of the protagonist's rival when it comes to the second generation since it is one of the few digimon that It could have multiple routes if the sins cards can replace the digi eggs also it would give us reason for dark create veemon where the author could perhaps give him his own evolution for level 3 and 4 Using the digimon that started all Veedramon (Digimon V tamer) and has a similar name so that veemon can evolve to AeroV-Dramon and definitively to Ulforce V-dramon so that veemon is not just a basic digimon that only serves to evolve champion or material for fusion monster with wormmon and can fight powerful digimons

Yugioh (My expectation)
-Replicate his blue eyes custom monster which should be easier since there are more materials but the difficult thing is how to get them and also Dark has to tell the truth to Pandora about what he did with his gift and if dark gets her or Hephaeus give him materials to replicate his blue eyes monster or if these blue eyes custom monster take different routes in the six star but they all become blue-eyes alternate white dragon when entering the 7 stars and then blue eyes white dragon and have the ability to turn into eggs like the first blue eye custom monster.

So we can see how six star monsters based
Blue-Eyes Abyss Dragon
Blue-Eyes Solid Dragon
Dragon Spirit of White
And Dark summon sometime although I think he will need his Sins cards to achieve it and bring Deep-eyes white dragon

Chapter 640

Pandora offered to negotiate with Dark for dragon-type materials so we have hopes of more blue-eyes monster in the future when Dark reaches the point of making a replica or some similar version and other types of dragon materials for other dragon monsters in the future for something for something that only dark can give

Since I really do not want demidevimon to be a monster that has a chance to become the 7 demon lords of digimon since I feel that although it would be important to demonstrate demidevimon as the ace of dark is that I really want to see more demons monster for dark not only for him Problem that someone mentioned in the reviews but I would also like dark to collect or to show moment where he fell into darkness similar to the protagonists yugioh digimon and also to stop dark the appearance of a hero of justice and it will be incredible if in a duel he manages to invoke both belzemon as belphemon rage mode in the field plus another demon lord since it would be incredible although I wonder how author will do it with the pride route

Since I don't like Lucemon and I don't find it interesting compared to Mastermon and since pride 4 seems to lean towards the light maybe the author degrades the form of lucemon: larva mode to make it the same as neodevimon level and the defininitovo level is Lucemon : Satan Mode that would be more original than the male version of Mastermon

But the problem is that when he enter 4th grade that duelist will be left to try to challenge dark and that is why I am interested in knowing what decision the author is going to make regarding this

Although for the moment at least we know that when Dark enters 4 years Pandora will continue to be his teacher since she declared that she wants to stay in school as a librarian for various reasons so she will continue to be a figure that can help Dark in his investigation although We no know if could have a duel again due that now they would student and school employee and it is allowed or not

Actually the author will keep dark as human or will make him become the demon god but keep the human form of him.

Since although the sypnosis tells us that the epoca would not forgive Dark if he transforms into the Demon God but if he maintains his rationality and human form thanks to the future control of sins, I do not think there will be problems if he becomes being op something similar to Rimuru the slime who later became a demon lord but who kept his form and personality but increased all his abilities and power

Because Dark is unknowingly creating an army of monster that will fight for him and are loyal to him due to Dark's bond with them.

Dark is also unknowingly strengthening his family by creating a company to earn money so that his family expands in economic power so that his family in the future could dominate the world with his power.

His mother loves him too much and is determined to protect him unless the author brainwashes her to have a change of heart so that she wants to kill his son I do not see it possible I even think she would rebel against the world if it is to protect Dark.

The author already raised the possibility of a war or battle since Pandora asked Dark to give intelligence to some of his monsters to protect someone important.

The royal family is a joke since they only survive due to the power that supports them: the prince the holy church and the princess the family of dark that even a noble mentioned that if the royal family fell it would not mean anything for the family of dark or the holy church

Dark achieved his dream of obtaining a version of blue-eyes white dragon thanks to Pandora senpai although Dark is scared to tell her the truth about the materials he used since he does not know how she reaction

In his second year, Dark is allowed to obtain another monster as demidevimon and he managed to obtain Agumon and his evolutions through the card pride are related to the digimon route of Agumon from Digimon Squad

The reason why I grouped Dark and white's stag is because the stag saved dark when Lady devimon was corrupted by a mad moon goddess and helped save the life of dark as demidevimon who was in lady devimon at that time.

Just imagine the potential of the stag if dark used his sins cards in the maybe dark would get a version of the pokemon Xerneas when the deer evolved

Reason why white despises and cannot use the potential of the stag.

He hardly ever uses it in his duels

When he drew it, he decided to give up, considering it a useless card, when he faced Diana

First official duel between dark and white

[Mind Light], which can express the power of the soul, once helped him awaken the [Evil Beast] that was corroded by the Moon Goddess.

The upper limit of this nirvana depends on the magister's mental strength, which is a typical psychic ability that will be amplified by the magister's thought and emotions.

As the son of a brave man, if Whitte can make good use of this [soul light] and put his courage into it, he should be able to get good results.

It's a shame that the [Light of Mind] without the magister's spiritual augmentation is just normal nirvana unleashed by magical one-star elves.

This shows that white does not know how to use stag to its full potential.

and I agree with Ryuubi that the interactions with his intelligent monsters were nice.

The slow development of the plot happened from the things that were already noticed in the spoilers since it took more than 400 chapters for Dark to finish his first year so the pace is super slow and considering that it has more than 600 chapters and in novelupdate just goes to chapter 62 obviously have a lot of road and need stamina and patience to be able to enjoy this story

What Dark does during his spare time as mentioned in previous spilers where for the most part, he will watch the MC as a spectator for most of the main plot, but he won't avoid getting into the mix of things if he has to, which he usually is. Near the end of the arc when something important to his future development occurs and aside from that, he spends most of his time experimenting and playing cards which makes most of the events seem repetitive until the duel or fight scenario of life or death.

What you have already been warned about if you read the spoiler even the same synopsis and the protagonist tells you that the game where he reincarnated used the elements of other franchises

About your comment about Dark, do you not remember that he was an adult who woke up in the body of a 12-year-old boy with almost no important information about the game and you seriously hope that in a world where mathematics is at a lower level than his previous world are able to make a problem for Dark or that some children can compare themselves with respect to intelligence on that subject and you mean the age that enters the first years was 12 years old and it is true that compared to how the characters of little tyrant these look very immature in comparison just take that as a story for fun

(And by the way if there are noble people who are manipulative or think like noble but they are teenagers or adults but most of them cannot harm Dark due to the protection of his mother or dark plot armor)

At points that I agree with you is that the narrative form sometimes becomes very repetitive at certain points and continues to praise things such as the virtues of effort, dedication, and other virtues to explain the victory of some people or the constant advance of dark

About harem I already said it, the girls are the ones who fall in love with him but not dark with them since he is busy with his own affairs and it will be difficult for him to be in a relationship since so much dark before and after obtaining his memories he does not have no experience in a real relationship

I also agree with White and his affection card but he really during the course of the story he does not use it due to the scolding he received from the teacher and due to his own morals so there is not much problem in that.

Your comment about Emma I don't remember if I saw Harry Potter so I'll keep quiet but it is obvious that she is one of the author's favorite characters because she has a longer screen time although she is not related to Dark as a friend.

Although I hope that she gave more screen time to girls more interesting in second year since Emm if I'm honest I am not interested in she as a rival or love interest