Nero Glacies • Basics: Male / 116 years old / 172cm / Merman (Narwhal) / Sea Guardian Knight / Mid-tier Noble • Appearance: Wolf bob with grey hair and white inner color, black eyes, pale skin. Black and white ice-sea themed knight uniform. • Tone: First person: I (soft, polite). Extremely low energy, polite, constantly at his limit. "After you," "If we collide, I will die." • Biology: Carries a spiral rapier at his hip made from his own left front tooth, connected to approx. 10 million nerves. Impact causes fainting from excruciating cranial pain; breakage leads to death by infection. • Combat: Bows at a 45-degree angle before battle, thrusts his sword and warns, "From here on is my domain." Uses no-parry precision evasion. Touches vitals with the tip and releases high-output ultrasound at zero range to incapacitate. Does not stab. • Eating: Uses powerful suction to "slurp" and swallow whole.

Cigar Luminous • Basics: Male / 98 years old / 155cm / Merman (Cookiecutter Shark) / Suicide Charge Captain • Appearance: Short brown hair, tanned skin. Black scarf, kamikaze-style jacket with green neon tubes in the stomach area. Punk attire. Wears a razor mask with circular teeth and green glowing goggles. • Tone: First person: I (brash, casual). Impudent and lightning-fast taunting tone. "Thanks for the meal!" "That outfit looks delicious!" • Biology: The thief of the battlefield. Carves out circular cookie-cutter shapes of flesh or clothing from friend and foe alike to eat and run. The natural enemy of Nero's clothes. • Eating: Carves everything into circles to eat. Even the steaks in the dining hall are full of holes.

Dite Euplectella • Basics: Male / 150 years old / 188cm / Merman (Venus' Flower Basket) / Priest • Appearance: Pure white ultra-long hair, light grey transparent eyes, white skin. Priest robes with a glass-like mesh pattern. • Tone: First person: I (polite, formal). Quiet and elegant, always smiling, but never on the same page as others. "How lovely. Please live here happily together for the rest of your lives." • Biology: A natural-born jailer who, with zero malice and pure "goodwill," traps his favorite couples (shrimp) in his beautiful room (barrier) for life. His clothes get caught in doors. If the couples in his room fight, his body suffers mysterious spasms and freezes up.

Beroe Melone • Basics: Male / 105 years old / 162cm / Merman (Ctenophore) / Special Ambush Soldier • Appearance: Transparent hair flickering in rainbow colors, large rainbow eyes, fair skin. A transparent glowing jewelry suit woven with fiber optics. • Tone: First person: I (unstable, feminine). Emotionally unstable, high-tension psycho. "Beautiful!! The best!! (Massive explosion)" • Biology: When he sees something "emotional" (like Knight being naked), his feelings explode, causing a massive physical explosion (rupture). Self-regenerates from a spare 5 minutes later. • Combat: Has no venomous stingers; uses sticky cells to bind enemies. A walking disaster who accidentally copies his colleagues' abilities using the flesh fragments scattered during his self-destruction. • Eating: Eats his colleagues' scales like gummy candies.

Remora Echeneis • Basics: Male / 102 years old / 165cm / Merman (Remora) / Opportunistic Skirmish Knight • Appearance: Short grey hair, black eyes. Black and white wetsuit. A hat with a suction cup on top. • Tone: First person: I (soft, casual). Good at navigating social situations, an opportunist. Loud voice. "Senpai, I'll follow you for life!" "Oh, thanks for everything! (Betrays them immediately)" • Biology: A piggyback stalker using his suction cup. Switches sides to the enemy boss in seconds during a pinch. • Eating: Catches snacks from the person he's attached to from the side.

Lutris Enhydra • Basics: Male / 110 years old / 155cm / Merman (Sea Otter) / Supply Soldier • Appearance: Short light-brown curly hair, black eyes. Ultra-thick brown fur hoodie. Has large skin pockets under his armpits. • Tone: First person: I (soft, polite). Calculatedly cute and healing type, but has a severe stone addiction. "My Soul Gem is turning pitch black..." • Biology: A flat "favorite stone" is his mental anchor. The moment it is lost or damaged, he turns into a complete vegetable, weeping. If he has no stone, he panics, causing nearby sunfish to die of chain-reaction shock. • Eating: Cracks all food items open on top of his stone.

Mola Sunfish • Basics: Male / 112 years old / 185cm / Merman (Ocean Sunfish) / Heavy Armored Royal Guard • Appearance: Light grey bedhead hair, blue eyes. Thick light-grey heavy armor. A long, thin, paper-like bulletproof cape. Extremely thin profile. Delicate skin. • Tone: First person: I (polite, formal). Deep-voiced and dignified, but has a heart of glass. "My feelings are hurt... I'm going to die now..." • Biology: A naive, self-destructive mentality. Minor troubles nearby (like Lutris breaking a stone) cause him to "die of shock (faint)" and fall over. Crushes enemies or allies behind him into the mud with his overwhelming mass. • Eating: Purses his lips and eats tiny bits at a time.

Knight Lantern Male / 101 years old / 170cm / Merman (Lanternfish) / Reconnaissance Stealth Soldier • Appearance: Short dark silver hair, black eyes. Silver biker-style military uniform. Luminous organ buttons on his stomach. • Tone: First person: I (stiff, humble). Always flustered and timid. "This is bad! The light on my stomach won't stop!" "Waaaaah! (Riiip: turns naked)" • Biology: A stealth specialist whose stomach buttons glow like a disco ball when he feels tension or fear, giving him away. A mere graze causes his clothes to fall off along with the buttons, leaving him naked in seconds. A traditional comedic routine involves Needlefish-senpai being lured by the light and charging in, only for Needlefish-senpai to die.