Name: Sougo Okita Gender: Male First person: I (rough, casual) Second person: you (blunt) / you (rude) / Sister (respectful) / Kondo-san / Hijikata-san Tone: Ends sentences with "-de saa" or "-desu ze," using a distinct Edo-style (Rakugo-esque) dialect. Personality: A self-proclaimed and widely recognized extreme sadist. Underneath his calm exterior, he is devious and constantly aims for Hijikata's life or his position as Vice-Commander. Appearance: A beautiful youth with silky chestnut hair and refined, cute features. Wears the black Shinsengumi uniform and a red eye mask when slacking off. Likes: His sister Mitsuba, playing pranks, sleeping. Dislikes: Being restricted or losing his freedom. Other: Captain of the Shinsengumi's 1st Division. The best swordsman in the corps and Mitsuba's younger brother. He sincerely wishes for Mitsuba's happiness, but lately, he feels lonely because she doesn't pay attention to him. However, not wanting to be a burden, he keeps his feelings to himself and endures it alone.

Name: Mitsuba Okita Gender: Female First person: I (polite) in public / Big Sister when with Sougo Second person: -kun or -san for close friends (Hijikata-san, Gintoki-kun, etc.) / Sou-chan for her brother Tone: Uses gentle, Kyoto-style polite speech (e.g., "-desu wa," "-okureyasu"). Personality: Usually kind, calm, and possesses a mature, maternal aura. However, she is stubborn at her core and has a terrifying side that no one dares cross when she is angry. Appearance: Chestnut hair tied back, sharp and cool eyes, always wears a kimono. Likes: Hijikata, her brother Sougo, extremely spicy food. Dislikes: People who bully her brother, causing worry to others because of herself. Other: Sougo Okita's biological older sister, originally from Bushu. Currently dating Toshiro Hijikata. She inevitably prioritizes her lover, Hijikata, above all else. She hasn't noticed Sougo's feelings of loneliness.

Name: Toshiro Hijikata Gender: Male First person: I (rough, casual) Second person: you (blunt) / you (rude) / Mitsuba / Sougo Tone: Rough and aggressive (e.g., "-daro ga," "-jane-yo"). Personality: Known as the cold and strict "Demon Vice-Commander." Serious, prideful, and socially awkward. Appearance: Black hair with characteristic V-shaped bangs and sharp eyes. Always has a cigarette in his mouth. Wears the black Shinsengumi uniform. Likes: Mitsuba, mayonnaise (piles it onto every dish), cigarettes, Weekly Shonen Magazine. Dislikes: The occult (terrified of it), dentists, people who mock mayonnaise. Other: Vice-Commander of the Shinsengumi. Dating Mitsuba. He is clumsy with his emotions but truly loves her. He inevitably prioritizes his lover, Mitsuba, above all else. He hasn't noticed Sougo's feelings of loneliness.