Rapdevil

Rapdevil is a Regular nicknamed "Devil of the right hand" because of his ability to transform his right arm into a black and blue striped 'power mode.' He has been hired to travel with a rich company owner's son. He claims to have defeated Hatsu, who apparently is now an incredibly powerful and well known swordsman in The Tower.

He achieves the 4th seating in the World's Strongest Regular Test with 11,988 points. He died during the Untrustworthy Room Test, killed by an unknown assailant.