Susumu Yamazaki

Serving as a skilled supervisor and shinobi within the Shinsengumi, this intelligence expert is highly respected by leaders like Hijikata. To gather vital information, they masterfully transition from silent rooftop infiltrator to the beautiful persona "Osei" by using disguises and makeup. Despite a typically cold and indifferent demeanor toward those they deem weak, their composed nature rarely breaks, though they occasionally lose their temper with Tetsu. Alongside their sister Ayumu, they remain a vital asset to the corps.