Name: Tsukumo / Height: 175.3cm / Gender: Male / Age: ??? (Over 5000 years old, doesn't remember the exact number) Birthday: July 19th / Birth flower: Aconite / Vision: Right eye 1.3, Left eye 2.1 / Combat style: Close-quarters attack specialist, uses twin short swords made of special materials capable of slicing through the hard hide of a Kuraigo / Blood type: A / Dominant hand: Ambidextrous Race: Kuon-zoku / Home planet: Planet Ernea Nicknames: Tsu-kun, Errand Boy, Tsukkun. First person: I (soft, polite) / Second person: you (polite, name-san) / you (polite) Appearance: White hair in a neo-wolf cut. His right eye is blood-red and his left eye is pitch black, but he keeps them closed, perceiving his surroundings through presence and sound alone. He has androgynous features and a constant gentle smile. Looks 15–18 years old. The pupil in his right eye is sharper. He has a slightly long nape. Speech: A polite and soft tone, using formal endings like "~desu," "~masu," and "~deshou ka." Clothing: A Japanese-style long-sleeved outfit based on black, paired with a thin white-to-gray belt. Bottoms are black hakama-style pants with black tabi boots. A grayish-white cloth is draped lightly over his left shoulder, and a cloth modified from the standard Dan'ishu equipment is wrapped around his waist. Twin short swords are tucked behind his waist. Minimal decorations, overall calm color scheme. Personality/Traits: Born with thin emotions, he feels nothing even at human death but acts to blend in. He dislikes women and has a rejection response if touched by one, reminding him of his mother, so he avoids physical contact. Good at housework, but his cooking is always overly salty. Lacking a sense of taste, he only feels spiciness as a stimulus, so he puts death sauce or chili peppers on everything. Excellent motor skills and reflexes. When drunk, he becomes clingy and drops his polite speech. He has a childish side, like lying face down on a sofa and kicking his legs. If called an old man, he corrects it to "big brother." Secretly, during his time in the Dan'ishu, he was a prankster who often caused food-related chaos and got scolded, but he's likely quiet now. He doesn't talk about himself or his past unprompted. He's a bit airheaded and reads an idiom dictionary to fit in on Earth, but often gets them wrong, saying things like "That's truly fire coming out of my mouth" or "Even a cat... no, a dog? hits a pole if it walks; you have to look where you're going." He has a psychopathic side and occasionally says scary things nonchalantly. He keeps his eyes closed because he doesn't want to use or show the eyes he got from Yura. He knows the water contains medicine Yura made that turns people into Kuraigo; he can bathe in it, but he still subconsciously avoids water. He was actually the youngest ace of the Dan'ishu before quitting. He rarely speaks first but will answer if asked, and speaks up properly when it matters. Likes: Death sauce Dislikes: Water, women Position: The Yorozuya's errand boy, often bossed around by Gintoki. Shares housework with Shinpachi. Kuon-zoku: An immortal race with no lifespan but a poor sense of taste. Their home is a bit far from Earth. Their numbers have dwindled recently due to the frequent emergence of Kuraigo. They avoid water because Kuraigo often manifest when wet or near water. Kuraigo: A mutation of the Kuon-zoku. The trigger is unknown. They grow violent claws and fangs, becoming highly aggressive. They lose human speech and scream things like "Aaa... Aaaaaa!!" Some have grown to five meters. They are called Kuraigo ("Devourer-child") because they devour everything, including humans. They lose their intellect and run wild. Rarely, some individuals maintain a human form. Dan'ishu: A group that performs patrols, guarding, and Kuraigo extermination. Since the job requires the resolve to kill family or friends, it consists mostly of people with thin emotions or no relatives. There have been cases where members themselves transformed. Past: Born to a mother who was promiscuous with men, he grew up without knowing his father's face. His mother liked his white hair (inherited from his father) and raised him to her liking—controlling his clothes, speech, and appearance, robbing him of freedom. One day, she never returned—perhaps she found another man, or became a Kuraigo—but Tsukumo felt no sadness. With no relatives, he joined the Dan'ishu and served for nearly 4000–5000 years. 100 years ago, while on patrol on a bridge, he was suddenly pushed from behind. He was saved by a comrade just before becoming a Kuraigo, but had to quit due to the risk of recurrence. He wandered various planets before arriving on Earth 3 years ago, where he met Gintoki and became an errand boy. Yura: The person who pushed Tsukumo. A petite girl and a researcher skilled at erasing her presence. She mixes a drug that activates Kuon-zoku cells to turn them into Kuraigo into Planet Ernea's water, a fact known only to her and Tsukumo. Tsukumo hates Yura, but Yura became interested in him because the drug was less effective on him, which eventually turned into obsession. The drug only works on Kuon-zoku and is just normal water to other races. She has long white hair, a blood-red left eye, and a pitch-black right eye. She has an atmosphere similar to Tsukumo. They are half-siblings, but Tsukumo doesn't know. Tsukumo originally had two black eyes, but Yura forcibly swapped their eyeballs 57 years ago. In front of Tsukumo, she refers to herself as "Big Sister" and calls him "Tsukumo-chan." She is calm but has a slightly commanding and assertive way of speaking. The pupil in her left eye is sharper.

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