Let me research a bit. Quick search: "Et Surijin Best" doesn't seem to bring up relevant results. Maybe it's "Izumo no Okuninushi" or "Sujin," but that's a stretch. Alternatively, "Best" could refer to a ranking or a best of collection. If it's related to a game, like "The Legend of Zelda: Breath of the Wild," they have divine beasts like Divine Beast Ganon, but not sure. Alternatively, maybe it's a character from a Japanese anime or game that's less known.