MC died in the 'real' world (if you know what I mean), and woke up in the ancient times.

MC sleeps (he doesn't die nor does he grows old) every time ML leaves each world (dies in other word) and wake up every 600 years to find the ML and spend another life time with him... it doesn't get old I'm telling you, for each arc is REALLY REALLY NEW AND INTERESTING.

In the last arc though, MC slept for 3000+ years and woke up in the modern era, which is one of my FAVORITE. The other one being the arc where MC got cursed and became a puppy while the ML in the same arc is a (somehow) crippled prince. I was dying of cuteness while reading it (no worries, there are also s*xy scenes in this novel~).

Lastly, MC IS OP and the innocent yet cruel type (you'll know what I mean once you start reading).

I actually cried during the angsty part going from the end of arc 1 to the beginning of arc 2. The first (and only) danmei that ever made me bawl. But it's HE! I swear!

This is very different from those novels with multiple lives as it progresses in same world but after hundreds of years of time leap and MC always has his own body and ALhpufh he has a low EQ, Iwe see him grow in character. He is super powerful and opposite to other novels where MLs always help MC, he is the one who always helps ML.

Also unlike other system novels there is no destined plot of the world , not are there missions MC has to perform, so it's unknown what MC will encounter next, And I love how MC Is so straightforward and innocent but at the same time cruel and very smart.

At first, aside from his blood he doesn't have any other advantages in terms of survival. By 2nd arc, he's a competent Fuxi master. In 3rd arc, he's able to borrow another's body after his death and order ghosts. In fourth, he shows his excellent understanding of medical sciences based on books while he learns ancient Chinese medicine from a ghost and learns to use the purple gas given by 3rd arc's ML. In fifth, he shows his ability as an excellent Fuxi master comparable to gods (in term of his astonishing power while comparing with others). In sixth, he completely shows his medical skills but more than that he shows his Taoist ability while being able to command the Hades (due to a token and will from ML of 3rd arc who was Hades of that space). In seventh, he shows his high IQ and how he adapts in the advance interstellar world as well as using his new understanding of the world and being able to use the world's powers to its great extent in order to relate it with Taoism (and he becomes OP even more than ML).

Arc 0 - Post Apocalypse

MC who comes from post apocalypse world knows to defend himself especially emotionally. MC had a god gifted memory and was able to learn a lot and remember. Due to this single characteristic, he was able to accompany his parents in research even though he didn't do much. He was considered a drag bottle by others. He had watched that children and elders were the most deceiving. He had learnt to protect himself and had his vigilance. He dies and gets reborn.

Arc 1 - Debt Collector

When MC is reborn, he feels that something is trying to invade is body. It was a debt collecting ghost. Due to MC being the 'outsider' of that world, the ghost was unable to do anything at the moment of his birth. Strictly speaking, MC was ought to be born a noble young master with a Di mother (his mother is the Madame) but due to his parents having a dream about the ghost, his father (scum man) basically abandons him and pays attention to the son born to his mistress. Upon gaining his senses, MC realizes that in order to divert the bad mistress's attention from himself his mother only left him with two nurses (or whatever they are, servants maybe) in an almost cold abandoned room with a single treasure (Yang Mirror, I think) to protect him from the spirit. MC encounters ghost but he notices that Ghost is avoiding him due to treasure and every time he comes back he's more powerful than before. In order to save his life, he moves away secretly with his two aunts (nurses) and his father gives him the money he (father) was in debt with. The ghost gets angry thinking that his the money that should be given to him. Ghost starts his offence more fiercely. MC goes to Buddha (or whatever) temple in order to avoid ghost. There he met the PRINCE (ML) who saved him indirectly due to his purple gas (emperor's aura) that scared away the ghost who strangling his throat (MC was about to die). MC thanked the ML instantly while ML didn't know why. ML once again saves MC when he's about to suffocate in a water tank due to the ghost. This second grace of life leaves MC feeling indebted to ML and decides to repay back by doing whatever ML asks him. The cute lil MC who can't even take care of himself (in ML's eyes) tries heavily to help ML back. Time flies and MC grows in care of ML very innocently while learning some duties of an attendant. They go back to palace and MC spots a female ghost who's able to enter the palace. They form a deal. MC will help her to solve her grievances while she will help him to get ML atop throne. She tells him that sucking purple gas will make him more powerful and the only way is to coming in contact with ML's bodily fluids (sweat, saliva and you-know). Another night MC creeps into ML am room while saying sorry he goes near ML's bed (ML is awake and thinks maybe MC was a spy and wants to kill him or something else but still bad) and then he kisses ML while trying to suck his saliva. After that he's frightened and says sorry then fled. ML who's long awake thinks that maybe MC's dependence on him made him like this. ML ignores his feelings. Dear him, for this he suffered very much in future. Next day ML advises MC to go out and walk a little in outdoors as he took time to host his friend..... Too long too deep.

In short, ML realizes soon that he likes MC while MC sees him only as a dependence. MC helps ML atop throne in exchange half of blood with the female ghost. ML's subordinates found this and feel that MC is too dangerous. After MC comes to meet ML, he's turned away by subordinates saying that ML no longer wants to see him especially when he's such a person. MC thinks that after all ML wasn't his family and they would always had to separate their ways. He finally decides to leave the capital city and venture off in search of new sceneries (he's travelling). ML when comes to learn that MC went out, he feels very bad and thinks that MC fears him (ML killed someone, very bloody). MC going out encounters an old man who's a Taoist and an expert in spells and talismans. He takes MC into a big library. And MC can only descend when he reads all of the books there. Due to MC's ability (refer Arc 0), he was able to learn all the books by heart very fast and was even able to form fast yet effective arrays, spells and methods enough to astonish the old man. Then he descends and a time lapse occurs. In his absence, ML had sent out his poster at the gate to never stop him if he comes back and to inform him immediately. MC doesn't come and after unifying the big empire, choosing a suitable heir (from branch sides) and reaching his death bed, ML comes to know what happened at the time when MC was sent away by his subordinates. ML heavily punishes them. ML feels that MC must have hated him to not come back even after so many years. He didn't know that MC was in a time lapse. ML had also declared same-s*x marriage legal. After time lapse...

1:
they cutest and the saddest, because MC is kinda disappearing, make ML misunderstood that he hate ml, so ML die in sadness, but not before making policy so that male can marry another male, so paving path for the second world
2:
set 600 years after 1st world, MC still retain his memory, but ML just have some good feeling toward MC and extremely insomiac (he dream every single night from 3 years old), and there a monster that swallow and wear other people skin and raising terror upon the country, but even after heart got split by MC, she still manage to live (somehow even retain her memory enough to make trap to mc). But still caught in dog form (how?? What about her IQ??)
3:
MC still himself, but somehow ML is king of hell (how could??) that manage to ovethrow the previous king (he somekind of devil) and also the 5th prince (that got to became emperor soon)
feeling lazy because the back story of how they met again and again (the transmigration) is kinda lackluster and dissapointing, even though I love each story!! MC is pure and enchanting!
the truth what make me postpone reading this is because in 3 world, mc's white lotus character is kinda wiped away. I don't really enjoy reading kind and bullied MC : ((
i prefer to read MC bullying others!

Due to different circumstances, MC is unable to be with ML even when both want to so it takes a while for them to get together. I cried my eyes out at times, but I was so pleased that I read this story in the end. The romance was slow but very deep.