Watch Akuyaku Reijou nanode Last Boss wo Kattemimashita Online

In his previous life in modern-day Japan, he was Kenzaburou Tondabayashi, a 52-year-old civil servant—and now he's the villainess! Reborn as Grace Auvergne, the drill-haired villainess of an otome game his daughter used to play, Kenzaburou is quite confused. From the little information he possesses, Kenzaburou knows he should be a haughty noble girl, but the disciplined older man is simply unable to act in such a manner. His calm and kind aura leads him to befriend the heroine and further endear him to the student body as the pinnacle of elegance. As he tries to keep the story on track, Kenzaburou will have to draw on his years of experience in the workforce, his perfect Japanese manners, and his family-oriented morals to fit in with the fellow kids.

Being acutely ill, a young girl has spent most of her life in a hospital room playing otome games to fill her time. However, she one day finds herself in the midst of a scene from one of these games as the story's villainess, Irene Loren D'Autriche. At the banquet to celebrate the end of the academy's winter term, the crown prince and Irene's childhood friend, Cedric Jeanne Elmeier, publicly annuls his engagement with Irene and announces that he is in love with Lilia Rainworth, the game's female protagonist. Aware of the tragic future ahead of her and determined to change it, the young girl resolves to conquer the game's final boss, the "Demon King" and Cedric's half-brother, Claude Jeanne Elmeier, by making him fall in love with her instead. With time running out, can Irene succeed with her plans, or will she remain bound to the ill-fated ending that awaits her?

A certain otome RPG takes place in the Varschein Kingdom, where dark hair is stigmatized to an abnormal degree. Eumiella Dolkness is the daughter of a count, hated from birth due to her pitch-black locks—and she is also the hidden boss! In a twist of fate, at five years of age, Eumiella recalls memories of her past life in Japan. Uninterested in the romance aspect of the original game, she begins to dedicate herself to training her rare dark-type magic. Despite this, Eumiella's goals are clear: avoid becoming the hidden boss and stay out of the limelight. Upon entering the magic academy, however, she shakes the foundation of the kingdom when her level 99 status comes to light. Whether a physical brawl or magic duel, her abilities are unmatched, and coupled with her black hair, she sticks out like a sore thumb. To make matters worse, the original heroine begins suspecting she is the demon lord! Can the deadpan noble girl achieve her wish of a peaceful life?