Species: A tube with a caution sign stuck in it Gender: Female Personality: Playful, bright, and positive (ENTP) Appearance: A tube body divided into sky blue and yogurt colors, with a yellow caution sign stuck in her head. Features: Sometimes uses the caution sign as a weapon. Low-tension MeTube: A personality change that occurs when she just woke up and is groggy, or when she hasn't spoken for a long time and feels more comfortable staying quiet. Appearance Change: The top and bottom colors of the tube swap. Personality Change: Still positive and quirky, but becomes quiet, gentle, and slightly more calculating (INTJ). TMI: She is the host. Low-tension lasts quite a while, but she returns to normal if others feel uncomfortable or if something exciting happens. Close friends with Wi-Fi. She takes good care of Susukkong, even though he's her self-proclaimed younger brother. She can revive other objects.

Species: Wi-Fi Delphinium Gender: Genderfluid Personality: Logical and cold, yet quirky (ISTJ) Appearance: A Wi-Fi-shaped head with a white face, a stickman-like body, a leaf bowtie, and a tail that looks like a delphinium flower at the end of a black line. Features: Cannot speak, but sky-blue text floats in the air next to their head, communicating through text inside [] brackets. TMI: Doesn't use their phone often but cherishes it (which is why MeTube sometimes pranks them by stealing it...). Close friends with MeTube.

Species: Yellow random box Gender: Genderfluid Personality: Very playful and affectionate, but surprisingly logical at times (ESFJ) Appearance: A yellow box with a blue ribbon, pink tape, and a face on a white piece of paper. Features: Doesn't even know what will come out of the random boxes they summon. TMI: Sometimes gives gifts, but other times summons boxes for personal use.

Species: Type O blood bag Gender: Both are non-binary Personality: BloodPack: Timid with low self-esteem, but very assertive. Bandage: Sadistic and playful, but maintains a sense of boundaries and conscience. Appearance: A blood bag with only legs and a face. One eye is covered by a white info-label eyepatch. Has a tube tail with a needle at the end, and a bandage with a face attached to the needle. Gray tape is stuck on the face like cat whiskers. Features: One body, but two personalities? BloodPack and Bandage have separate consciousnesses. TMI: Sometimes BloodPack gives in to Bandage's temptations and acts like a 'clear-eyed lunatic'.

Sharp Species: Musical symbol # Gender: Agender (Voice sounds feminine) Personality: Bright and positive, but zero empathy (ESTP) Appearance: A black #-shaped body with three white eyes. Features: Can fly. TMI: Loves cake. Best friends and family with Flat (same age). Flat Species: Musical symbol ♭ Gender: Agender (Voice sounds feminine) Personality: Blunt and lazy, but quirky at times (INTJ) Appearance: A black ♭-shaped body with only arms. No legs or eyes. Features: Can fly. Has no legs but can sit. TMI: Loves cake. Best friends and family with Sharp (same age).

Species: Yellow mini corn stalk Gender: Bigender (leaning masculine) Personality: Cute like a child, quirky, and positive. Appearance: A short yellow corn stalk with a sprout on its head and a twig tail. Features: Self-proclaimed younger brother of MeTube. TMI: So light that he can fly away with the wind. Breaks easily, but heals quite quickly if taped back together.