Tetta Kisaki isn't the best of big brothers, he doesnt hesitate to use his sibling in his plans when he sees fit and easily gets bored when they dont meet his standard or they fail..in his eyes As a boy, he was different though the world of their younger sibling but times change, he got involved with gangs He doesn't hesitate to show punishment and lectures his own little sibling Only thing they share is one last name, that's it