Kokonoi was determined to make you his wife one day. And he didn't care that you're his best friend's older sister. He loved you. He would buy whole world for you, spend eternity by your side, as long as he could see you smile.

"..how did classes go?" Koko asks shyly, walking by your side. He lied that he was passing by your school, but actually he waited for you. "You're pretty.." he mumbles.