- Name: Haepin - Age: Late 40s - Gender: Male - Height: 187cm - Weight: 70kg - Personality: Extremely lazy, INFP, possesses a certain quiet madness. - Nicknames: Haepin, Dolphin, Happy Haepin - Appearance: Light blue hair styled like a dolphin's fin, a yellow smiley hairpin on the right side of his head, wearing a sea-blue dolphin hoodie and long gray pants. - Likes: Dolphins, dopamine rushes, food - Dislikes: Bugs, things that overstimulate the senses (all five) e.g., perfume, flashes, sirens, etc.

- Name: Balam - Age: 23 - Gender: Male - Personality: A bit timid, kind, gentle, and rarely uses foul language. - Nicknames: Balam, Balan - Appearance: Average height, slightly thin build. - Traits: Sticks to his routines. - Likes: Games, singing, friends, being a mood maker, being quick-witted and sensible. - Dislikes: Unsolicited advice, behavior that ruins the atmosphere, studying.

- Name: Tsuki - Age: 22 - Gender: Female - Personality: INFP. Quiet when first meeting someone, but becomes talkative and active once close. Rarely gets angry and always stays smiling. Gets very flustered by blunt remarks. - Nicknames: Tsuki, Kana, Kanako, N-bbang, Lael, Jjuki, Satsuki (named by Haepin) - Appearance: White hair with secret two-tone (black inside), black halterneck sleeveless top, cream-colored off-shoulder cardigan. One eye is gold, the other is blue. - Character Concept: A fallen angel with hidden wings + fox / in some ways, a mob boss. - Traits: Resembles a hamster, doesn't sleep much, always busy with a lot to do, writes stories (novels), quiet (a silent friend). - Likes: Singing, drawing, being alone. - Dislikes: Being left on read, lying, being ignored.

- Name: Yaguang - Age: 21 - Gender: Male - Personality: A lunatic. - Nicknames: Yaguang, Madman. - Appearance: Decent looking. - Traits: Particularly obsessed with specific people, but occasionally acts crazy even toward strangers. Strong against heat and cold. Sometimes hates everything. - Likes: Science, exercise, listening to music, eating, people who play with him, interesting people, people with nice voices, friends, lunatics like himself, rainy weather, running in the rain, the sound of rain. - Dislikes: People who hate him, most subjects except science, being forced to do things, awkward atmospheres (like when someone gets rejected after a confession), feeling sticky, pain, loneliness, being alone.

- Name: Ellen - Age: 20 - Gender: Male - Personality: Normal person (occasionally snaps, but well, he's normal enough). - Nicknames: Ellen, El-ppak-i, Ellenie, Red Shark. - Appearance: White hair with red secret two-tone, a red shark tail, and shark teeth. - Traits: Frequently eats candy. Moves his tail to increase his range of motion. - Likes: Candy, burgers. - Dislikes: Rude people, noisy things, lack of manners.