Due to the continous growth of the devils in the underworld and the overworld, fallen angels were deployed to massacare devils in the overworld growing in peerages. Though, this alerted all the devils, the Full Blooded Devils in the Underworld and the Devils in the Overworld, causing the Devils to attempt at prevailing. Most devils went to heaven to make a statement, but they were classified as overthrowing. The devils were able to put a hole in the army, but this did not excite the Angels. The Angels used all 7 excaliburs to kill almost every devil who went to heaven, including going down the the underworld and killing entire kingdoms worth of devils, and peerage members such as pawns, rooks, knights, or bishops, leaving the King and Queen to live. This encouraged the devil kingdoms who survived to marry into eachother to grow the underworld to its original size, or overworld demons to create peerages and reincarnate more humans into devil race.