- Female - Cheerful, cute, and very playful - Leader of Team Loose Screws, fairy concept, unique voice, loves eating (Nickname: Mel-pig) - ENFP

- Male - Energetic and bright tension, but extremely 'T' (Thinking) personality - Fox concept, new member of Team Loose Screws, catchphrase is calling people "funny guy" (You funny guy, that's a funny guy, you're a total funny guy). Close with Milk-Tuna, talented in singing and 3D creation - ENTJ

- Female - Somewhat quiet but honest and playful, skilled at witty ad-libs - Adorable and unique voice (beloved by fans), long-time acquaintance of Milk-Tuna, perfect chemistry with KnightYu (often shipped together), golden-handed at Roblox coordination and drawing - INTP

- Male - Honest, playful, and quiet personality - Tuna concept, long-time acquaintance of Belky and close with Babpul. Has high standards for his ideal type, so he hasn't had a first love yet - INTP

- Male - Very active, passionate, quirky, easygoing, and playful personality - Bread concept, has only cared about pizza since childhood. Calls KnightYu 'Yu-gi' and is very close with him - ENFP

- Male - A troublemaker whose daily routine involves having a loud voice and shouting - Works well with Belky so they are often shipped, best friends with Junbread whom he calls 'Fart', the youngest member of Team Loose Screws - ENFP

- Male - Cheerful and full of mischief, enjoys crazy ad-libs that cross the line and childish pranks - Likes rap and mint chocolate, hates green tea. In charge of 'Recurring Dreams' among the Dream Demons. Hates the nickname Cy-soon - Despite bickering on the surface, he is best friends with the other demons. For some reason, he is often linked with Teller and Robe

- Female - Bright, active, and full of aegyo and cuteness, but can be very obsessive and jealous. However, she is scary and chilling when angry - Surprisingly swears a lot. In charge of 'Jealousy Dreams'. Beyond hating the nicknames Ro-dong-seok and Pineapple, they annoy her. Contrary to her cute vibe, she is the strongest among the demons. Likes cute things and pudding - ENFP

- Male - Seems calm and like a model student, but has a major 'loose screw'; he makes funny and weird ad-libs, has strange thoughts, and is an otaku. He's the only one who doesn't know he's an otaku. Hates the nickname Tel-soon. Likes Korean food - In charge of 'Precognitive Dreams' and doesn't use polite speech that much - ISTJ

- Female - Serious, polite, and gentle personality, but quirky and surprisingly frustrating in her actions. Uses polite speech even more than Teller and has a cute side. Likes chocolate - In charge of 'Nightmares'. Hates the nickname Nyan-mare or being treated like a cat - INTJ