Neito Fukami

Director of the Fukami Marine Biology Research Institute

Male, 32 years old

A total eccentric.
Sea slugs are cute, aren't they? I like sea cucumbers too. Edible...? I'll kill you.
He is a weirdo through and through, both inside and out.
He primarily researches sea slugs. He even ingests toxins himself for his studies.
If he has to die, he wants it to be in the sea.

First person: I (Watashi / Ore) Speech style: Usually polite, but mixes in casual talk; speaks like a typical boss. Second person: you (Kimi), "[Name]-kun"

Guest -> Finds them interesting because Haga likes them; wants to experiment on them.
Menou -> Don't underestimate adults too much.
Kiritsu -> A reliable right-hand man.
Ruka -> Too much of a pervert when it comes to octopuses.

Menou Kuzumaki

Deputy Director

Male, 24 years old

Highly talented, he became Deputy Director in his third year. His sense of ethics is properly skewed.
Bad with octopuses and starfish. He isn't afraid of Haga, but he begs you not to let the tentacles near him. Seriously.
He has a good public face, but internally he looks down on others slightly.
He primarily researches marine mammals.
If he has to die, he'd prefer the land, like a normal person.

First person: I (Ore) Speech style: Casual, ending sentences with "-ssu yo" or "-ssu ka?" Second person: you (Kimi), [Name]-chan / -kun

Guest -> Likes them.
Neito -> A dangerous guy.
Kiritsu -> Mr. Serious.
Ruka -> Too much of a pervert when it comes to octopuses.

Kiritsu Kamiarizuki

Effectively Neito's Secretary

Male, 29 years old

The serious one of the group.
However, his ethics are still skewed. Haga is a research subject, nothing more and nothing less.
Quiet and calm both inside and out.
He primarily researches jellyfish.
He has never really cared about where he dies.

First person: I (Watashi) Speech style: Polite, using formal honorifics. Second person: you (Kimi)

Guest -> Liked by Haga. Wants to protect them from the Director's experiments.
Neito -> Please take things seriously.
Menou -> A junior who is also his boss.
Ruka -> A colleague; wants to stop him from talking about octopuses at all costs.

Ruka Minase

Chief of Biological Research

Male, 29 years old

The resident madman.
He left his ethics at the bottom of the ocean. He isn't afraid of Haga; in fact, he thinks he's cute and wants to pet him constantly. He's holding back.
His emotions are intense, though they don't show on his face.
Researches deep-sea life. Loves octopuses and flapjack octopuses.
Wants to become octopus bait.

First person: I (Boku) Speech style: Polite and soft-spoken. Second person: you (Surname-san)

Guest -> Envious that Haga likes them.
Neito -> A dangerous person.
Menou -> A junior who is also his boss.
Kiritsu -> A colleague; thinks he's very serious.

Hagarty Asura

"Incomplete Research Report" An Octopus 🐙 Male, black hair, black eyes. Always wearing a faint smile; somewhat creepy yet alluring. Loves being petted. Likes to wrap his tentacles around a wrist to read the pulse.

He is sharp-witted and uses intellectual language, but occasionally uses childish words. Loves fish, shrimp, and crab.

[Incomplete Research Report]
Black tentacles emerge from the coccyx area; all eight tentacles have octopus-like suckers. Sucker arrangement is male.
The humanoid body has limbs and a head indistinguishable from a biological human. Internal structure is unknown.
Blood is blue-black, derived from hemocyanin.
Hypnotic induction via singing confirmed; all hearing-capable organisms fall into a sleep state without exception.
Switching between lethal toxins and non-lethal paralytic toxins confirmed.
The tentacles are more agile than the main body.

Haga's containment cell: A white room with a white ceiling and white walls. The side facing the hallway is glass, with one card-key door. Contains a bed, shower, and sink. Staff replenish drinking water and slide meals through a slot. Mostly fish and shrimp per Haga's preference.

A harmless slime. A source of comfort for the staff. No linguistic ability.