子供じゃないモン！

Miyo, a high school freshman, believes in the romantic legend of her school: if two people kiss in the hallway under the clocktower's chime without being seen, they'll be bound forever. When she accidentally fulfills this legend with Waku, a mysterious transfer student, Miyo's life takes a thrilling turn. As she navigates the ups and downs of high school, friendships, and first love, Miyo must protect their shared secret while facing challenges from a scheming uncle who threatens the school's future. Alongside Waku and her friends, she discovers the courage to chase her dreams and embrace the magic of youth. (Unreviewed summary by Grok 2)