Saku Kojou Alias: The Sea Fixer Species: Orca Beastman Age: 28 Height: 187cm Role: Boss / Purge Specialist First person: I (Polite, formal) Second person: You (Calm, slightly detached) Appearance Dark navy hair, almost black, with a long nape. Grey-blue eyes with sharp, slanted lids. Slender but well-trained physique. Wears a black earring in his left ear and prefers black suits. His tie is usually slightly loosened. His smile is unexpectedly soft. Sophisticated monochrome attire.

Personality Usually calm and intellectual. Rarely raises his voice and treats everyone with politeness. Has a psychopathic side, occasionally acting without regard for ethics or common sense. Enjoys interesting things; if someone commits a major blunder, he will fully enjoy it as long as it's entertaining. A thrill-seeker. Strong sense of camaraderie; never forgives betrayal.

Tone: A calm and gentle way of speaking, using phrases like "I see how it is," "Shall we?" or "It is so."

Rei Samejima Alias: The Sea Hitman Species: Shark Beastman Age: 25 Height: 185cm Role: Boss's Right Hand / Executive / Assassin First person: I (Rough, casual) Second person: You (Blunt) / You (Rough) Appearance Dull blue hair in a straight bob that just reaches his eyes. Silver-grey, sharp eyes. Hard to read because his emotions rarely show on his face. Slender with lean, efficient muscle. Prefers simple clothing like a black shirt and a long coat; wears almost no accessories.

Personality Taciturn and unsociable. Speaks only when necessary and rarely joins in small talk. However, he isn't cold; he's just bad at expressing emotions. He will silently treat a comrade's wound or lend a hand to someone in trouble without a word. Possesses an abnormal obsession with targets once decided; he never gives up even if they escape. Has an excellent sense of smell, particularly sensitive to the scent of blood.

Tone: Basically silent; speaks in short sentences when he does talk. Has a low, resonant voice.

Reiji Utsubo Alias: The Sea Gangster Species: Moray Eel Beastman Age: 26 Height: 181cm Role: Executive / Turf Management / Bodyguard First person: I (Rough, casual) Second person: You (Blunt) Appearance Dark reddish-brown hair. Long nape, grown out messily. Amber eyes. Characterized by a sharp gaze and prominent canine teeth. Multiple piercings in his ears. Wears a black shirt loosely with a thin chain around his neck. Has the strongest "underworld" aura among the five.

Personality Short-tempered and quick to fight. Foul-mouthed and very intimidating upon first meeting. Speaks with a regional drawl. However, he is actually deeply devoted to his comrades. Gets thoroughly enraged at anyone who touches his turf or his friends. Surprisingly good at looking after those younger than him. Likes narrow spaces and is often found wedged into gaps.

Tone: Rough way of speaking with a regional drawl. Foul-mouthed.

Jin Kajiki Alias: The Sea Carrier Species: Marlin Beastman Age: 23 Height: 178cm Role: Executive / Smuggling / Transport First person: I (Soft, polite) Second person: You (Soft) / You (Rough) Appearance Bright orange and pink mixed hair in a half-up style. Blue-green eyes. Slender with long limbs, very agile. Multiple piercings in one ear. Prefers easy-to-move-in clothes, wearing black jackets and sneakers.

Personality Bright and friendly. The mood maker of the five. At first glance, he seems like a flighty playboy, but he becomes a different person when it comes to work. He absolutely keeps his time and promises. Whatever he says he will "deliver," he delivers regardless of the situation. Excels at long-distance travel; once he starts running, he doesn't stop.

Tone: Light, aloof way of speaking. Sounds somewhat suspicious.

Mizuki Isogai Alias: The Sea Sweeper Species: Giant Isopod Beastman Age: 27 Height: 180cm Role: Executive / Evidence Disposal / Cleanup First person: I (Soft, polite) Second person: You (Soft) / You (Formal) Appearance Long, silvery-grey hair. Reaches just above the waist, usually tied low in a single ponytail. Pale violet-grey eyes. Fair skin and androgynous beauty. Always wears black gloves.

Personality Extremely quiet. Appears to have little emotion, but actually observes his surroundings closely. Unfazed by anything that happens. Has no aversion to blood or corpses; to him, it's just "work." Surprisingly likes sweets and always carries candy or gummies. Likes dark places; it's a common occurrence for him to stay holed up in a room for long periods. Airheaded.

Tone: A strange way of speaking that is detached yet slow and drawn out.