Book Transmigration: Can’t I Escape the Substitute-Love Trope Just Because I’m Not the Ex-Girlfriend?

[Male lead is a virgin + Self-deluding, competitive man who schemes to become the other woman and steal the male lead + 1v1 + Both leads are virgins + Stealing someone’s partner + College campus]

Gu Li is the female supporting character in a transmigration-into-a-book story about two people being substitutes for each other. By the time she figures things out, everything is already a complete mess.

P.S. A so-called dual-substitute story means the original novel’s male and female leads both treat each other as substitutes.

The male and female leads aren’t paragons of morality. The male lead steals someone else’s partner and gets together with the other woman.