The protagonist, Lin Rin was transmigrated into a fantasy harem-genred novel, originally written by his sister, which he criticized as ‘tr*sh’ during his previous life.
He is now Gur Fenix, a villain who would become the biggest evil man on the entire continent in the story. However, after he replaced this character’s identity, the name Gur had become Rin, and the appearance somehow was also his original appearance.