Tatsuya, a former gang leader, seeks a fresh start after juvenile detention but quickly finds himself entangled in a gang rivalry. Amidst the chaos, he forms unexpected bonds with Kaname, a rival gang member, and Chihiro, the sister of a late gang leader, as they navigate the dangerous gang world together.

Ikuto and Ryoma grow close after meeting in juvenile detention. Motivated by Mikuru Asakura's words, they set their sights on the martial arts event Breaking Down, but looming rivalries threaten to derail their dream.

In a quiet seaside town, high school students Haino and Reiko are dating. They try to go further than just kissing, but fail due to a condition set by Reiko: Haino must win his next rugby match to earn her consent. Motivated by this goal, Haino devotes himself to the game—until a new woman catches his eye: Izawa, a substitute teacher at their school. When Reiko sees Izawa getting close to Haino, she becomes consumed with jealousy.

Hiro, a young Korean man in Japan, meets Aoi, a digital artist from a wealthy but restrictive family. As their relationship deepens, they visit a charkha studio, inspiring Hiro to create music again. Aoi rejects her family’s corporate expectations and stays at Hiro’s mother’s house. When Hiro gets an unexpected music opportunity in New York, they plan to go together, but Aoi’s father pressures them to separate.