After dying, Emi Kobayashi reincarnates as Remilia Rosa Graupner, the villainess of her favorite otome game. Possessing a genuinely gentle nature, Emi strives to give Remilia a happy existence, earning friends through her kindness and paving the way for a bright future. For ten years, Remilia observes Emi from within, satisfied as long as her host experiences happiness. But when the game's heroine, Pina Blanche, appears, darkness descends upon Emi's world. Pina quickly reveals her malicious motives, using deceitful plots to ruin Remilia's name and turn public opinion against her. As hopelessness threatens to crush Emi, Remilia takes control, determined not to let Pina win. Swearing revenge, she steps forward to demonstrate the true power of a villainess to those who have wronged Emi.