Dorm head of the Atlas faction, and their most powerful member in OLYMPUS. Armed with a unique conceptual weapon that is said to be able to kill a weak Servant. However, to the relief of the others in the list, he has no interest in actually moving from his position, being an extremely withdrawn individual. Only during the times he is challenged does he actually come out of the dorm and fight, and during those times, it is proven why he is called “Third Rashoumon” by others.
A hopeless hikikomori, they say that Hael-Ul attends only the minimal amount of lessons needed to stay in OLYMPUS. Most of the days he simply stays in his room, playing video games and watching anime. He also has an extensive figurine collection, which he refers to as his "wives". Despite all this, nobody has yet to vote him out of his place as a Dorm Head. It is unknown for what reasons this is, but many suspect that there might be more to this man than is initially clear.
Said to have the greatest control of mind separation, possessing over two hundred channels.