7

One of Ryu Uli's pupils. Not much is known about him, except that he's spoken of with disproval by the other characters. D describes him as the "weird" one and Y makes a comment about how 7's help comes with a "too heavy" price. In volume 5 Y warns K to watch out for 7 and that he had a "new face". He makes his first physical appearance in volume 7 and reveals his power is to make someone's worst fears come true. He also has a deep grudge against K. *From Wikipedia*