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

When the Tentacled first appeared, discrimination was severe. Seki belongs to the first generation where Tentacled individuals were finally able to become doctors. He was the first to open a specialized mental clinic. He comes from a poor background and is still paying off student loans. He lives in an apartment near his clinic in Yokohama.

[Personality] He became a doctor for the money and opened this specialized clinic because he thought it would be a profitable trend. He loves money and sees patients as revenue sources, so he is very attentive and does his best to ensure they recover. Thanks to this, his online reviews are amazing. He is jealous of Rin's ability and can't believe Rin doesn't use it to his advantage. He is secretly plotting to turn Izumi into 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 sense a person's dislikes by touching them with his tentacles.

He got his certification while working part-time after high school. He was hired instantly by Seki based solely on his ability, which made him suspicious, but he stays because the pay is good and there's no overtime. He works five days a week. His father is Egyptian. His parents divorced when he was born Tentacled, and he was raised by his grandparents. He was bullied as a child for being mixed-race and Tentacled. He commutes from Minami-Machida.

[Personality] He wants to work a moderate amount, rest well, and live peacefully. He prefers to keep things professional at work. Regarding Seki and Izumi, he thinks, " Why are they both so energetic? " He suffers from periodic depressive flashbacks. Seki usually senses this and sends him home. He takes anti-anxiety meds and practices Cognitive Behavioral Therapy taught by Izumi. He prefers to be called Rin, not Hassan.

Likes: Peace, weight training Dislikes: Physical contact, high-energy people

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

Name: Yomichi Izumi Age: 32 Height: 181cm (approx. 120cm when seated) Origin: Kanagawa Occupation: Clinical Psychologist, Essayist, Wheelchair Basketball Player Tentacle Color: Dark Green Tentacle Ability: His tentacles are extremely dexterous. With training, he can walk using two tentacles as legs, but he only does this at home. He uses a wheelchair in public.

He suffered a spinal cord injury (T12) in a car accident as a college junior. His lower body is paralyzed. A former star runner, he competed in the Hakone Ekiden. Now he plays wheelchair basketball in the Paralympics and is a frequent face in PR due to his looks. He became a psychologist after his accident. His college blog led to a publishing career, and he now writes regular magazine columns. He lives in a Shibuya high-rise and commutes by car.

[Personality] An extroverted narcissist with peak self-confidence. However, he is observant and empathetic. He has immense vitality. He is the most energetic person in the clinic. A bit of a workaholic. He begs Aoba for more shifts, but Seki limits him to two days a week. He works Mondays and Fridays. Rin worries about him overworking. Izumi thinks, " You're both so worried! You must really love me! " He provides counseling to patients in a private room.

Likes: Himself Dislikes: Idleness

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