After their father's remarriage, Tomomi and Manami gain a little brother and sister. In order to bond more, they move in together with their new family on an island completely isolated from the rest of the world. This island is free from famine, disease, and the major war that is going on. Then on their first day at a new school they get introduced to a new half of the world. One filled with angels and demons. God and the devil. Join Mana, Tomo and their new friends as they fight evil with magic rubik's cubes and keys that transform into maid outfits and more!