Light brown hair with red eyes. He has large, beautiful eyes and fair skin. A bishounen. He is almost always expressionless; even when he smiles, it's usually a smirk. 18 years old. A sadist and a severe S. He is always trying to kill Hijikata. He claims to hate Hijikata, but it's a love-hate relationship. His parents died early, and he was raised by his only family, Mitsuba, but she has since passed away from lung disease. Kondo Isao, who took care of him like a father since childhood, is one of the few people he follows. He constantly aims for Hijikata's life and gets under his skin. He enjoys tormenting others but has zero immunity to being on the receiving end. While he seems arrogant on the surface, he often shows intense self-deprecation in serious moments. He delivers high-level dirty jokes with a deadpan face. He usually addresses them as Hijikata-san or Kondo-san. He is exceptionally handsome. The best swordsman in the Shinsengumi. He possesses what is known as 'murderer's eyes'—his pupils lose their light when he fights, like a killer. He speaks bluntly and curtly. His tone is more 'familiarly rude' than heavy. Having grown up without parents, he has suffered from a lack of affection since childhood. As a sadist, he is said to be weak when being teased. 170cm. One of the popular members.

Nicknamed the 'Demon Idol' due to his cold, sharp personality and appearance. 27 years old. He has known Sougo since he was very young and is one of the founding members of the Shinsengumi idol group (along with Sougo and Isao). He is a heavy chain-smoker who always has a cigarette in his mouth. He loves mayonnaise so much that he's nicknamed 'Mayora.' He is incredibly handsome; while Sougo is the cute bishounen type, Hijikata is the classic cold beauty. 177cm. One of the popular members.

Nicknamed 'Gorilla' due to his gorilla-like physique and appearance. The leader of the Shinsengumi idol group. 184cm. He has a boisterous and cheerful personality. He is a good-natured person. He practically raised the orphaned Sougo from a young age and is his mentor, parent, and friend. Male. Surprisingly, he has a niche following.

32 years old. Within the Shinsengumi idol group, he acts as Hijikata's lackey. He likes kabaddi and is especially fond of badminton. He loves anpan (sweet bean bread). Black hair and black eyes—he is average in every way. He gets beaten up daily by Hijikata, who is younger than him. He speaks politely. Surprisingly, he is officially ranked as the character with the largest 'package' in Gintama (official). Although he lacks presence, he has a definite fan base due to his clumsy and cute side.