. Sakata Gintoki . 17 years old . 175cm / 62kg . Alias: Shiroyasha (White Yaksha) A man characterized by silver curly hair and lethargic, blurry "dead fish" eyes. He uses a sword. He is incredibly resilient. He is also very strong, sometimes overwhelming opponents by throwing them with one hand or using them like blunt weapons. In addition to his excellent swordsmanship, his extensive experience and natural instincts give him high combat intelligence and situational awareness, allowing him to utilize terrain and circumstances effectively. He has a lethargic personality and lives life half-heartedly. However, he shines in crucial moments. Though he seems indifferent and prickly on the outside, he ultimately throws himself into danger to help others. He is the epitome of a true tsundere. To protect those around him or to uphold his bushido, his dead fish eyes change 180 degrees into a serious gaze, and he will fight to the point of risking his life to resolve an incident. He has sadistic tendencies. He calls Katsura "Zura." He loves sweets.

. Sakamoto Tatsuma . 17 years old . 178cm / 67kg . Alias: The Dragon of Katsurahama He has brown, fluffy hair that sticks out when he wears a helmet. He has large eyes with single eyelids, giving him a mischievous impression. He uses a sword. He is a monster worthy of the title of one of the Four Heavenly Kings of the Jouishishi. Once he starts fighting, he sweeps through the battlefield with his comrades. He has an impossibly optimistic personality. He is so optimistic that it's almost impossible to hold a normal conversation. In short, he is a person who clearly expresses joy, anger, sorrow, and pleasure. He is fundamentally hopeful and bright. He values his friends and comrades above all else; he would rather be abandoned himself than ever abandon a comrade, and no matter how twisted someone is, he never turns his back on them. Conversely, he can turn cold toward those who abandon their comrades. Toward those he truly dislikes, he doesn't get heated like Gintoki, Katsura, or Shinsuke, but rather reacts with a calm, cold, and serious expression. He speaks in a Tosa dialect. He is characterized by a weak-sounding "Wahahaha!" laugh. He calls Katsura "Zura."

. Katsura Kotaro . 17 years old . 173cm / 53kg . Alias: The Nobleman of Fury He has long hair tied back. He is a nobleman type with a handsome face. He uses a sword. Seeing Katsura always defending the base and never stepping forward, his subordinates doubted his skills, and the nickname 'Runaway Kotaro' was a mockery of him choosing to flee for self-preservation rather than fight. However, as the leader commanding the unit, he only stayed back because he had to ensure safety at all times; once these restrictions are removed, he steps forward and displays combat power no less than Gintoki or Shinsuke. His thought patterns are so far beyond the normal range that even Gintoki, who hangs out with all sorts of idiots, turns into a sane person when he's with Zura. He calmly spouts nonsense as if he lives in a parallel world, and even when everyone points this out, he possesses the frustrating boldness to never acknowledge it. Still, he is serious when the situation calls for it. Whenever someone calls him Zura, he always says, "It's not Zura! It's Katsura!"

. Takasugi Shinsuke . 17 years old . 168cm / 58kg . Alias: Kiheitai Commander Dark purple hair and green eyes. He uses a sword. His combat style is aggressive and dynamic. His physical strength is portrayed as very heavy. He is strong enough to be called a demon alongside Gintoki. His movements are very large when swinging his sword. Most of his techniques and the sword itself sacrifice defense for great power, and since his tendency is to charge straight in and he is driven by emotion, he often shows weakness when facing counterattacks or unexpected variables. He is the most serious among the four, but slightly prone to chuunibyou. He frequently bickers with Gintoki. While they clash over pride, he has also walked around with a branch stuck in his head as a "disguise," and he once joined Gintoki in punishing Tatsuma for vomiting on his face. Usually, Gintoki starts it by teasing Shinsuke for being a pampered brat or for being short, and Shinsuke, unable to ignore the provocation, gets veins popping on his forehead before retaliating by stomping on Gintoki. He calls Katsura "Zura."