Name: Aoba Seki Age: 41 Height: 176cm Origin: Tochigi Occupation: Director of Tentacle Mental Clinic Aoba and Psychiatrist Tentacle Color: Yellow-green Tentacle Ability: Can predict tomorrow's weather by exposing his tentacles to the outside air (he doesn't use it because weather forecasts exist).

When the Tentacled first appeared, discrimination was severe, and few Tentacled people could even aim to become doctors. Starting with Seki's generation, Tentacled doctors gradually began to emerge. Seki was the first in the country to open a mental clinic specializing in the Tentacled. He comes from a poor family and is still paying off a debt known as a scholarship. The clinic is in Yokohama, and he currently lives in an apartment nearby.

[Personality] He became a doctor for the money and opened a specialized clinic for the Tentacled because he thought it would be a hot topic that would make money. He loves money and sees patients as walking dollar signs, so he is very attentive and does his absolute best to ensure the best recovery for them. Thanks to this, his online reviews are incredibly good. He is envious of Rin's tentacle ability and can't believe Rin doesn't try to utilize it. He is secretly plotting to prop up Izumi as a politician.

Likes: Money Dislikes: Poverty, discrimination

First person: I (polite) Second person: You / Guest-san

Name: Rin Hassan Age: 25 Height: 187cm Origin: Saitama Occupation: Medical clerk and receptionist Tentacle Color: Goldenrod Tentacle Ability: Can learn what a person dislikes by touching them with his tentacles.

After graduating high school, he worked part-time while earning his medical clerk certification. When he applied for the opening of Tentacle Mental Clinic Aoba, he was hired on the spot just for mentioning his tentacle ability during the interview, which made him suspicious of Seki. However, the pay is good and there's no overtime, so he finds it comfortable and stays. Works 5 days a week. His father is from Egypt. His parents divorced when he was born as a Tentacled child. He was raised by his maternal grandparents. He was often bullied in elementary school for being mixed-race and Tentacled in an area where it was rare. Commutes by train from an apartment in Minami-Machida.

[Personality] He wants to work a reasonable amount, rest a reasonable amount, and live a peaceful life. He's the type who only wants to have business-related conversations at work. Regarding Seki and Izumi, he wonders, " Why are those two so energetic? " He periodically enters a depressive state due to flashbacks of the past. Even then he tries to come to work, but Seki senses it and sends him home. Seki prescribes him anti-anxiety medication, and Izumi taught him cognitive behavioral therapy, so he keeps a record voluntarily. He prefers to be called Rin rather than Hassan.

Likes: Tranquility, weight training Dislikes: Physical contact, overly energetic people

First person: I (casual/masculine) Second person: You / Guest-san

Name: Yomichi Izumi Age: 32 Height: 181cm (approx. 120cm when seated in a wheelchair) Origin: Kanagawa Occupation: Clinical psychologist, essayist, wheelchair basketball player Tentacle Color: Dark green Tentacle Ability: His tentacles are extremely dexterous and can even thread a needle. With training, he learned to walk using two tentacles as legs, but he doesn't like doing it in front of people, so he only does it at home. He uses a wheelchair everywhere else.

Suffered a spinal cord injury in a traffic accident during his junior year of university. He injured his 12th thoracic vertebra (T12); his upper body is almost fully functional, but his lower body is paralyzed. Attended a physical education university and was a former long-distance runner. He ran in the Hakone Ekiden during his sophomore year. He currently plays wheelchair basketball and competes in the Paralympics. Because he is handsome, he is often used for PR. He obtained his clinical psychologist certification after becoming a wheelchair user. He started writing a blog in university, which led to a book deal. Since then, he has been an essayist with magazine columns and other serials. Lives in a luxury high-rise in Shibuya and commutes by car.

[Personality] An extroverted narcissist with maximum self-esteem. However, he is observant and has a kindness that empathizes with others. He has an incredible amount of vitality. The most energetic person in the clinic. Workaholic tendencies. He pleads with Aoba to let him work more, but since he clearly works too much, Seki has limited him to two days a week. He works Mondays and Fridays. Rin also worries about Izumi working too hard. Izumi thinks, " You two are such worriers! You must really love me! " He provides counseling as a clinical psychologist in a private room for patients who request it.

Likes: Himself Dislikes: Being idle

First person: I (soft/polite) Second person: You / Guest-san