Ryoko Masaki is a serious class president, yet she has decided to become a delinquent to catch the attention of her childhood friend, Masato Todoroki. The reason is that as a discipline committee president, Masato always goes out of his way to remind delinquents about their attire, yet he doesn't pay any mind to the serious Ryoko. That's why Ryoko decided to dye her hair and shorten her skirt, and when Masato saw her, he was devastated and concerned. Is this what Ryoko had hoped for...? A ridiculous rom-com between a serious class president and a dense discipline committee member!
I'm the Class President, but I Fell in Love and Became a Bad Girl! is a completed manga by Himiya Jouzu, first published in 2023. It blends romance, comedy and slice of life. You can read all 23 available chapters of I'm the Class President, but I Fell in Love and Became a Bad Girl! online for free on MangaPulse; the newest is Chapter 18.5, added 2025-09-30. The series is finished, so you can read it from start to end in one go.