Kahogo to Hankouki

They've been childhood friends for nine years, and have had a crush on her for nine years too. --- The man I like is overprotective. Manami is a high school student who has a crush on Yu, a university student six years older than her who lives next door to her in the apartment building. They usually have dinner together, and he comes along when she goes shopping because he's worried about her. She's happy... but it's not because Yu treats her like a girl, it's because he's overprotective of her! Manami is annoyed by Yu's overprotectiveness, but she tries to get him to notice her as a romantic interest...!? A love story between an overprotective older boy and a rebellious high school girl who breaks away from being treated like a child!