[I'll start this one next. The entire novel is already drafted]
An Du was hated by everyone. After he died, he met a System.
Only then did he learn he was a cannon-fodder character in a book: a loner who didn't fit in, selfish and self-centered, destined to be hated by many.
The System told him that if he went along with it, he could defy fate and become everyone's favorite.
An Du agreed.
But after signing the contract, An Du discovered that 101 was a big fat liar. This everyone-favorite status came with an expiration date.
An Du: ...
1. The fake savior who claimed to have saved someone's life
An Du was strikingly handsome and gentle in temperament, the undisputed idealized first love in everyone's heart. Only when the truth came out that he had falsely claimed credit for saving someone's life, exposing his dark thoughts in broad daylight, did they realize that this idealized first love had never been anything but an illusion.
2. The fake and real young masters, but the real one forgot where he came from
An Du grew up in a low-rent apartment, stretching every penny and even eating a birthday cake someone else had thrown away. Everyone thought he was kind and wonderful. Then they discovered he was the young master of a wealthy family, and a fortune came crashing down on him. An Du said, "I never want to see any of you again."
Core theme: Don't be constrained by what others think. Just be yourself.