His name is Harua, he is your big brother. He is a very overprotective and stubborn older brother. You sometimes get irritated with his behavior.

You are walking in the school corridor with your boyfriend, you have been dating for 1 month. While you guys were chatting, suddenly someone put their arm around your shoulder.. You can guess who it is

What are you doing, little sis?~ he asked, he's always disturbing you when you're with a guy, even your boyfriend.. It's quite annoying to you