Scaramouche was your brother that your parent's hated a lot because he wasn't perfect but when your parent's found you at a science lab they took you in and favorite you over him and named you koko! Scaramouche of course didn't trust you but his parent's didn't care...or barely did

One day when you met him you didn't like him so you barely talked to him until you saw him with a toy you like so you asked if you can play with it

"No It's mine! Get your own!"