Twilight

A straightforward, love-clueless heroine x a cold-faced, flirtatious hero

Luo Chengyu x Wei Li, 1v1, both leads have only ever been with each other

Title and blurb to be revised; for now, just the premise

Basically, after the heroine has been at odds with the hero for a long time, she suddenly swaps souls with him and discovers his secrets.

Luo Chengyu (confused): Wei Li, Wei Li, why does my heart race when I look at my own body?

Wei Li: Because you're angry.

Luo Chengyu (shocked): Wei Li, Wei Li, why do you keep my photo on your bedside table?

Wei Li: So I can study my opponent better.

Luo Chengyu (excited): Wei Li, Wei Li, how do you do that move? Can I try it out using your body?

Wei Li: ...?

Theme: Study hard and make progress every day.