The lead is someone who died during a future filled with advanced zombies and mutated animals after experiencing the pain of betrayal, which is also somewhat brought about by his previous actions and behavior. Just when he thought that it's the end, he wakes up and found himself back a year before the tragedy struck. He used to be an arrogant, rich young Master, but is also the spoiled illegitimate son of a politician whose wife has connections with the military.
Aside from returning to the past, he awakens an ability, a mutated space dimension in his mind that can be controlled with psychic powers or something-- and an obsession with Xiao Sa, someone who has saved him and helped him a lot to learn how to survive in the disorder of the apocalypse. Xiao Sa seems to have some feelings for him which the MC failed to realize nor appreciate in his previous life. Even after going back to the past, he still isn't aware of his own feelings for the guy, though his preparation seemed to be centered all for Xiao Sa (he wanted to take care of cows in his space so that Xiao Sa will have some beef to eat when the apocalypse comes. Or hoarding clothes of different styles which are mostly Xiao Sa's sizes. I thought that was sweet.)
Bai Jing's is over-the-top with his preparations but then, he is preparing for a zombie apocalypse. His obsession with Xiao Sa is also pretty tame compared to Sangjin (?) 's obsession to be Hansoo's" friend" in Reincarnator (totally shipping them) but it's still giving the story darker tones like Kill the Lights vibes.
This is one of the more enjoyable modern urban love rebirth stories. If not for the revenge plot, this would really be fluffy as heck, as this novel also spent quite a few chapters during Shu Ning's childhood, and his interactions with Shu Heng is really cute af especially when the latter has started to spoil Shu Ning. It got tooth-rottingly sweet by the time their relationship was established romantically.
Since Shu Ning, due to the incitement of his mother, did everything to hamper Shu Heng's path during his previous life, he is now doing his best to repay Shu Heng and be good to him since he was the only one who was at least good to him in spite all of the things he had done. Shu Heng was aware that it was actually Shu Ning's mother who was prodding Shu Ning's actions.
BUT, I honestly found some scenes a bit uncomfortable. Shu Ning was still pretty young when Shu Heng started developing feelings for him. It's just the thought of their ages that made me uncomfortable, is all.
I quite admire the author with how s/he seemed to have thought of almost everything that can be considered, in some ways, like how the characters didn't seem to act their previous life's age, or how they have forgotten about certain memories from their past lives. It's amazing how detailed this novel is. The characters' reactions in various situations are also pretty authentic (as authentic goes in a fantasy world). The protagonist isn't the moralizing self-righteous hero, but someone who is pretty relateable in their selfishness and desires.
I am so annoyed with how Alan. Greed (MC) found his romantic partner and lost his virginity. I am not looking for any romantic shizz but MAN! That whole thing was a bit anticlimactic, even if I like Miduchi as a character.
I kind of have expected that MC's death had something to do with ML's death in their previous lives but I wasn't able to figure out exactly how it happened. It was explained close to the end, of course. The MC was just a collateral damage from the ML's family's infighting, and died after having drunk a poisoned/drugged (?) bottled drink that was meant for the ML. He died after presenting photographic evidence to the police that ML was pushed from the building (?).
In summary, with MC's rebith, he became the ML's lucky charm.
Since MC wasn't the only one with a ''cheat'', nor was he the only one who was reborn, there's a lot of sinister machinations happening in both the foreground and background of the story, with each of the characters with the cheats trying to gain as much benefits for themselves as they can, politicking not even included yet.
You'll figure out the direction the plot and the twists were going to take the moment their ''son'' appeared, especially if you read too much scifi.
I especially liked the way the parallel timelines and alternate universes were interspersed to develop the romance between the main pair. It was pretty depressing, actually, rife with sacrifices and pain just to be able to make sure that the other will remain safe and happy. The sacrifices weren't limited to the main pair but with their families and close friends as well.
Background of the son was also too much of a downer.
They worked too hard to achieve their happy endings.
By chapter 78, Wu Han Ying and Xia Chen are still on a lowly acquaintance level bridged by the little dumpling Xiao Shang, aka XC's nephew (?). WHY's family life was also introduced and it's pretty sh*tty. Not really tragic, just sh*tty.