Marvel: I'm a Symbiote - Symbiote 0206: External Influence

Ling Xiao was a powerful martial expert who fell in battle and was unexpectedly transmigrated into another world. He began life anew in the body of a boy with the same name, a fallen genius of the Ling Family whose cultivation had been crippled in a surprise attack, and son to a father who had also suspiciously been crippled under similar circumstances. Armed with knowledge from his previous life, Ling Xiao aim to restore his strength and establish his place at the top of this new world

- Description from Novelupdates

Transmigrating into his own novel, Mu Yifan was very conflicted!

Transmigrating into his own novel and becoming a zombie, Mu Yifan was even more conflicted!

Transmigrating into his own novel and becoming the zombie king that had killed the male lead who was reborn one month before the Apocalypse and wanted to take revenge, Mu Yifan has lost his calm!

Therefore, he decided to become heartless. He has to get rid of the male lead before he is reborn!

Ah!?

Hold on, what kind of rhythm is this?

Didn’t he write a Science Fiction novel?

How did it become a Danmei?

Being able to see into people's past has no real appeal for the teenager this story is about, letting him use it only as amusement and to show off when he was drunk.Never watch into someone's past beyond a superficial level.Never try to find out more than you should.NEVER. EVER. LOOK. INTO. THE. FUTURE.But everything changed the moment he was forced to look into the future, was forced to investigate a murder, and was forced to make the acquaintance of the victim's twin brother('s fists).The more time passed, the more it appeared that the primary reason for this murder wasn't a local problem, but a global one.This single, marred corpse was the beginning of a threat that would shake the world.(MC looses a screw when he enters the prison)BL, first-person view; MC is shuo (perhaps even a reversible couple); love interest falls in love first; both MC and ML are straight, mutual bending, Enemies to Lovers

On her wedding day, she was humiliated; her status as the legitimate wife was instantly changed into that of a concubine.