Slash is a mysterious person who apparently ages in reverse. He met Dan and Coco when they were young. He is very skilled at basketball and has been seen with Coco. He has also brought her to the moon just as he promised he would. He is also the Chairman of the OCB. He is revealed later in the series to be Ascend, King of the Moon, and elder brother of King Regalia of the Skybloom Kingdom. He became young again using a secret family technique utilizing ultimite. He was also the one who introduced Dan and Coco to the game of basketball, and the one who trained James Loane. By the end of the series, he sacrificed himself to protect Mooneyes against the Legend Bullet created by Yang Harris. He reverted back to a child, given to the care of Coco JD.