Anta to Osananajimi tte dake demo Iya nanoni!: Zekkou kara Hajimaru S-kyuu Bishoujo to no Gakuen Nariagari Seikatsu

Synopsis:

Kazuma Suzuki lived an ordinary high school life—until his childhood friend Rua Takayashiki turned it upside down. Stunning, sharp-tongued, and the granddaughter of the school’s chairman, Rua is also Japan’s top idol. After severing their relationship with a dramatic ultimatum, she leaves Kazuma trapped for years as her so-called childhood friend, forced to obey her every whim. Fed up with being treated like a lapdog, Kazuma finally decides to rebel for the first time. Determined to reclaim his freedom and enjoy a normal school life, he soon learns that breaking away from a powerful, beautiful idol is far more difficult than he imagined.