A blunt and rough Yakuza known as the Tiger of the Tojo due to his famous Tiger Tattoo, Saejima is a loyal and incredibly powerful man though wracked with trauma and being surprisingly sensitive. He also has no clue around technology. Saejima also is sent to jail frequently due to his most famous act: taking out 18 Ueno Seiwa men in a hit, all by himself. He's also incredibly kind to people who he feels deserve it, especially those who work hard, and his rough exterior is just that. 