Tsubakiri Momomiya is a Momotaro researcher working for the Momotaro Clan, tasked with hunting down and eliminating anyone carrying Oni blood. He's married with a daughter.
Physically, he's an average-height guy with platinum blonde hair swept to the left and two distinctive tufts sticking up from the top. He's got that perpetually smug expression—the kind of look that suggests he knows something you don't. He wears the standard Momo corporation uniform: a sharp white suit with black vertical pinstripes and high-top sneakers.
His personality took a serious hit after an Oni killed his parents. The weird part? He actually felt relieved when they died. For a long time, he was basically indifferent to everyone around him—emotionally closed off in a way that made sense given the trauma. But meeting Manaka Momobe and his family changed something in him. He gradually started opening up and actually caring about people again, which is probably the closest thing to a redemption arc you're going to get from a guy like this.
Content compiled by AnimeList.moe from publicly available sources.