Такума Кодзуки

Age: 16 Takuma is the oldest of the Kozuki siblings. After their parents' death, he drops out of school at 14 in order to support everyone, working at a recycling facility during the day and as a casino dealer in Ginza at night. He is wary of Ryuuji and, despite getting financial help from him (as the loan that Tsukasa believes is exaggerated), would rather avoid having anything to do with him at all. When Akira enters the picture, Takuma subtly tries to convince Tsukasa to date him instead of remaining near Ryuuji. As the oldest sibling, Takuma picked up on more about their parents' activity than the others have. He has known for a long time that their parents were involved with Garyukai in some capacity, but didn't disclose this to his siblings as he didn't want to worry them. He has also known all along that Tsukasa is not related to them by blood.