Kurasawa Hina

She’s a third-year middle school student and the protagonist’s childhood friend. Her older sister, Runa, is his classmate.

Cheerful, lively, and a little cheeky, she’s not the type to be easily intimidated. During lunch breaks, she often drops by his high school classroom to eat with him and his friends. He treats her like a younger sister—more like a kid than an equal. She’s not entirely happy about that, but she’s accepted it, telling herself it’s fine as long as he dotes on her.

However, everything changes when she learns that Kaede and the other girls have confessed to him. That’s when she decides to step out of the “little sister” role and become something more.