Konomi, a female college gamer, suddenly finds herself in the body of a villainess in a girls' game world.

While she is running around in confusion at this sudden event, she hears a scream that signals further problems to come.

"Why have I become that country girl--!?"

There she finds the original villainess, Irene, in the form of the player character (protagonist)!?
If she leaves Irene alone, with her sharp personality, they will both be ruined...!
So Konomi, wearing the villainess' shell, must guide Irene, wearing the protagonist's shell, in order to reach the game's true ending!?
The body-swap fantasy between an efficiency-obsessed gamer and a former villainess begins!