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.

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 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)

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

The monster cards made from the seven sins are smarter and generally have more moves than the average cards. He also made cards with purely sins which can evolve the monster cards made from said sins which is pretty OP as higher rarity cards are hard to make.

The main heroine in the novel is Pandora and she is the only girl that Dark actively says that he likes and the only girl that he had kissed too. Though, there are other girls that like him and he is close with.

Diana & Rose: His best friends basically. Diana is proactive in telling him that she likes her but she is too childish in his eyes and basically not his type. Heck, she even knows this later in the 700+ chapters but still acts the same way. Rose is kind of more reserved and doesn't even tell Dark that she likes him. They are important characters that are around quite often.

Aurora: His fiancée in the game, though that never comes to light in the actual story. She appears quite late into the story and like him as well. Though, I think unlike in the game he is OP and smart and so doesn't need a fiancée to babysit him anymore and since the engagement was unofficial, he doesn't get engaged to her anymore. This doesn't mean she is not close with Dark though, because she is. She is in some important out of school arcs as well so there's that.

Professor Lily: She's a weird one. She like him but mostly either play pranks on him or simply works with him with some stuff. Overall, she's a fun character.

Eudora: Dark's stalker, well she no longer stalks him in later chapters. She likes him because she could see the OP sins powers in his body in the form of stars or something. Dark treats her like some kind of younger sister and she is not around very often.

Ergani (Athena) : This one I'm not too sure. Ergani appears very late into the story and respects Dark for helping her form her wisdom and is kind of very close to Dark. She's a very important character though and will continue to be important later.

He also has other girls that are have a crush on him such as Emma and his maids but they don't appear often.

that he never loses. And once you go through 500 chapters and realize that, it drains all the tension out of any fight that he participates in.

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

it gets solved relatively early on and is integral to the MC's development but the title itself is kind of bait. Yes the MC cannot be lazy or lustful (I mean he's 11 so...) but he's not really following the "buddhist lifestyle" after a while. He just becomes a diligent student.

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.

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