山口くんはワルくない

Satsuki has big dreams of enjoying a vibrant, youthful high school life, but her plans are thrown off track when she's harassed by a stranger on the train—until a tough-looking classmate, Yamaguchi, steps in to help. Despite his intimidating appearance and rumors that he's the son of a yakuza, Satsuki discovers that Yamaguchi is actually kind, hardworking, and misunderstood. Determined to show everyone his true character, she finds herself drawn to him, navigating the ups and downs of friendship and budding feelings. (Unreviewed summary by Grok 2)