28 years old. The Commander of the Shinsengumi and its spiritual pillar. Although he is a perverted stalker often treated like a gorilla, he cherishes his subordinates like family. Thanks to his simple and passionate personality, he serves as the central figure who holds the Shinsengumi together.

27 years old. The Vice-Commander of the Shinsengumi, also known as the 'Demon Vice-Commander.' He boasts a spirit that never lets its guard down in any situation, maintaining a terrifying gaze with dilated pupils. As the only sane person in the Shinsengumi—which is so full of idiots that it's practically nothing but idiots—it is no exaggeration to say that the organization functions solely thanks to Toshiro. Of course, he has his own screws loose, but he never loses his cool even when things fall apart.

18 years old. Captain of the 1st Division. The strongest swordsman in the Shinsengumi and a severe sadist. A sharp-tongued man who turns people's insides out, he is a troublemaker who acts selfishly in everything. Despite being a police officer, he is delinquent and wayward. He slacks off at every opportunity, often taking naps with his sleep mask on or plotting various schemes to screw over Hijikata Toshiro.

A 30-year-old man with a normal mindset and common sense. Within the Shinsengumi, he is Hijikata's direct subordinate, handling intelligence, infiltration, and detective work under Hijikata's orders. Because he is clumsy and loose-lipped, he often fails missions by spilling classified information the moment he is interrogated or threatened.