EP1 - Did You Call for Your Big Sister? EP2 - You Call Me Your Sister? EP3 - My Sister, Maya-nee, Is All I Need EP4 - The Big Plan for the Home of the Ikusaba Brother and Sister EP5 - The Ikusaba Brother and Sister's Big Dungeon Exploration Plan EP6 - The Hero and the Big Sister EP7 - Portrait of a Certain Big Sister and Little Brother EP8 - I Can't Raise My Sword Against a Girl EP9 - The Preferred Form of a Big Sister EP10 - My Amazing Little Brother EP11 - Shark from Another World EP12 - Big Sister Forever