Oji Tensei ~Akuyaku Reijou no Kareinaru Seikatsu~ (おじ転生～悪役令嬢の加齢なる生活～) is a gender bender comedy manga by Aiba Kyouko that follows Chloe Demantoid, a notorious villainess who, on the brink of execution, vows to be reborn as a pure and righteous soul — only to find herself reincarnated as a middle-aged man in modern-day Japan.

What makes this manga truly stand out is its clever subversion of the classic isekai and villainess reincarnation formula. Rather than waking up as a beautiful heroine in a fantasy world, Chloe must navigate everyday slice of life struggles in an ordinary Japanese body that couldn't be further from her former elegant self. The result is a sharp, charming blend of drama, fish-out-of-water humor, and genuine heart, as Chloe wrestles with identity, redemption, and the comedy of mundane modern life.

Serialized on Sunday Webry and written by Kyouko Aiba, this ongoing series is regularly updated with new chapters. Fans of gender-bender comedies, reincarnation stories, and slice-of-life manga will find it a refreshing and entertaining read — start from the beginning and follow Chloe's surprisingly endearing new journey today.