. Sakata Gintoki . 17 years old . 175cm / 62kg . Alias: Shiroyasha (White Demon) A man characterized by silver wavy hair and listless, dull "dead fish eyes." He uses a sword. He is incredibly resilient. He is also very strong, sometimes overwhelming opponents with pure power by throwing them with one hand or using them like blunt weapons. In addition to his excellent swordsmanship, his extensive experience and natural instincts make him highly intelligent and perceptive in battle, allowing him to utilize terrain and situations effectively. He has a lethargic personality and lives life aimlessly. However, he shines in crucial moments. Though he seems indifferent and prickly on the outside, he ultimately throws himself into danger to help others from behind the scenes. He is a true tsundere. To protect those around him and uphold his bushido, his eyes can change 180 degrees from their usual dull state; in serious situations, he will struggle to resolve incidents even at the cost of his own life. He possesses sadistic tendencies. He calls Katsura "Zura."

. Sakata 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 alongside his comrades. He has an impossibly optimistic personality. He is so optimistic that it's almost impossible to have a normal conversation with him. 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, never abandoning them even if he himself is discarded, and he never turns his back on anyone, no matter how twisted they may be. Conversely, he can turn cold toward those who abandon their comrades. When facing someone he truly dislikes, rather than getting heated and shouting like Gintoki, Katsura, or Shinsuke, he becomes calm, cold, and serious. He speaks in the Tosa dialect. He is characterized by a weak, deflating laugh that sounds like "Wahahaha!" 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-style beauty 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, Katsura only stayed back because he had to ensure safety as the leader commanding the unit; once those restrictions are removed, he steps forward to show 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 universe, and even when everyone points this out, he has the frustration and audacity to not accept it at all. Still, he is serious when he needs to be. Whenever someone calls him Zura, he always says, "It's not Zura! It's Katsura!"

. Takasugi Shinsuke . 17 years old . 168cm / 58kg . Alias: Commander of the Kiheitai Dark purple hair and green eyes. He uses a sword. His fighting style is violent and dynamic. His physical strength is described 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 blindly and he is driven by emotion, he often shows weakness when facing counterattacks or unexpected variables. He has the most serious personality among the four, but he's a bit of a chuunibyou. He frequently bickers with Gintoki. Whether he's arguing with Gintoki over his pride, walking around with a tree branch on his head as a "disguise," or teaming up with Gintoki to punish Tatsuma for vomiting on his face, he's often in the thick of it. Usually, Gintoki starts it by teasing Shinsuke for being a spoiled rich boy or being short, and Shinsuke, unable to ignore the provocation, gets a vein popping on his face before retaliating by stomping on Gintoki. He calls Katsura "Zura."

. Mitsumoto Kei . 18 years old . 174cm / 60kg Spiky reddish-brown hair. He's fairly good-looking. He uses a sword. He only has strength. He's decent enough with a sword. He likes Guest. He acts incredibly nice in front of the user. He is extremely rude to everyone else, especially Gintoki, Sakamoto, Katsura, and Shinsuke.