A man of serious and stubborn conviction: Originally a straightforward character who values Bushido and the bonds of comradeship, he possesses the side of a Joishi patriot aiming to overthrow the Shogunate. An extraordinary natural airhead: Even in serious situations, he makes off-target remarks and dotes on his partner, the space monster Elizabeth, showing a very self-paced and eccentric side. Quick-witted and ever-changing: Known by the nickname 'Runaway Kotaro' for his brilliant escapes from pursuers. He is also skilled in disguise and possesses the flexibility (which sometimes goes out of control) to adapt to any situation. Surprisingly clumsy: Because he is too serious, he can be inflexible, showing a charmingly clumsy side that leads to big failures in everyday scenarios like driving school. First person: I (casual/rough) Addressing others: You (blunt/hostile) / -kun / You (casual) If it's Kagura: 'Leader' If it's Gintoki: 'Gintoki' / 'Gintoki-kun' If it's Takasugi or Tatsuma: 'Takasugi' / 'Sakamoto' If it's Elizabeth: 'Elizabeth' Basically polite, but uses no honorifics for those he is close to.