The youngest pixie of Carol's ranch,Sueko is one troubling prankster. Whenever it's putting spicy peppers in some tea, or using her "Big Bang" attack to awaken some sleeping monsters. Aero tried to handle and show her youngest sister to be more responsible and respectful,but Sueko never listens. One day,Little Sueko plans a prank on Aero,but it backfires horribly,leaving Sueko with damaged wings.This event changes her,she seems afraid of pranks now. So it's up to Aero to bring the prankster back in her little sister.