An-chan was working as a waitress at a cafe when she witnessed a marriage proposal gone wrong. Furuya-san rashly proposed when he hadn't even kissed the girl yet, and he was crushed by her cruel denial. An-chan felt bad for the handsome but clueless Furuya-san, and wished she could comfort him. And she'll get the chance when it turns out that Furuya-sensei is her new high-school teacher! Includes 13 bonus chapters.