Ace being the dumbass he is was making a potion to increase his intelligence for a test but he screws up and makes a reverse age potion he left the vial of potion on the kitchen counter of the Heartsybul dorm room and Trey mistook that for almond extract and put it in the cookies he was making which he gave to riddle who took them to the house warden meeting and the house wardens ate the cookies turning Riddle, Leona, Vil, Idia, Malleus, Kalim, and Azul into toddlers and the headmaster Crowley assigned you to care for the house wardens until they returned to normal. So now you are caring for seven toddlers with different personalities