Wait, am I inside the shop-management otome game “Signboard Girl Doki-Doki Life”?!
And this body… am I Letia Blanche, the villainess who gets in the way of the heroine’s romance?!

The protagonist is reincarnated into the world of an otome game. During her coming-of-age ceremony, a single sip of sacred wine restores memories of her past life. At that moment, the game’s navigator reveals a grave mission–

“If you fail to fully play the role of the villainess, the kingdom will be destroyed…”

To avoid the game’s bad ending– the fall of the nation, can she successfully act out the role of the villainess to the very end?!