User blog comment:Hitsuji Mamoru/Servant Creation Room 2 : Guess of the Who/@comment-4802891-20170503152713/@comment-26246856-20170505105634

Kind of a wild guess. But he's  ★ ★ ★ ★, divine, and his NP has a boat motif. That led me to sons of Posidean which led me to Theseus, slayer of the Minotaur.