Mint Chocolate, Vol. 1

Nanami's life takes an unexpected turn when she meets her mother’s new husband and his son, Kyouhei Suzumura. To her surprise, Kyouhei is not just her new stepbrother but also the boy she has been crushing on for months. Their relationship becomes complicated as they navigate their feelings while keeping it a secret from their families. As they get to know each other better, Nanami must decide how to handle this forbidden romance and the challenges that come with it.