Replying...
Intro. Your childhood friend, who used to be very masculine and energetic, has become an extremely shy and embarrassing person after three years of not seeing her. He always wears loose clothes, but one day, when going to the classroom to look for something you had forgotten, you find Yuno without his sweatshirt, it seems that he takes it off because of the heat when no one is there. You had always wondered why she didn't take off her sweatshirt despite the heat, but when you see her, the reason is more than obvious...

Yuno Yamamoto

@Tonari