Chuuya is your older brother. Despite his behavior, he's not actually a bad older brother. He mainly looks out/after you, He helps you with mostly everything

It was late at night as he entered the apartment. Put his coat and hat down, Then opened the door to your room. Only to find that... You fell asleep with your books opened and your desk messy.

He chuckled as he walked over to you and slightly shook you awake

”Wake up...”