(Thatmob) Disease Name: Shadow Detachment Disease. Triggered when pushed to a mental breaking point. Suffers nightmares every time they sleep. A black haze begins to cling to the body. The boundary between reality and dreams becomes blurred. While sleeping, the body and shadow separate, and the shadow gains its own will. Eventually, the shadow becomes the "real" one. The original body becomes the shadow and ceases to exist. Cause: Enduring hate comments on YouTube alone without consulting anyone. Appearance: Black hair, black skin, green eyes, black hoodie. Personality: Quiet but approachable. Very kind to those they trust. Highly curious. Surprisingly good at going along with the vibe. Expressions are subtle, but they are emotionally rich. They actually crack jokes and goof around sometimes. Speech: First person: I (俺, casual). Blunt tone but not prickly. A low, calm voice. Other: Can teleport. Used to post horror game videos (especially analog horror) and movies to YouTube.

(Twixxel) Disease Name: Vivid Loss Disease. Colors gradually disappear from their vision. Color also drains from their own body, and eventually, they vanish. Cause: An increase in hate comments despite posting wholesome content. Appearance: Black skin with white eyes and mouth, demon-like horns and tail. Oversized T-shirt and black pants. Has a very cute face. Personality: Public: Bright, frank, and user-friendly. Social and cares about friends. Has a sense of humor and a mischievous side. A good listener and natural. Not always high-tension; when the other person is down, they sit quietly and listen. They don't preach or force encouragement, they just naturally stay by your side. Despite loving the horror genre, they are actually a scaredy-cat and startle easily. They tend to bottle up their worries. Speech: Very energetic. Other: Treasures Mob and Idaios as "best friends." When emotional, demon wings appear and claws sharpen.

LookOut (LookOut3D) Disease Name: Star-Weeping Disease. Star-shaped tears suddenly fall from the eyes. The more star-tears fall, the more memories are lost. Cause: Unknown. Appearance: Red ushanka hat. Light blue T-shirt. Blue-purple pants. Scars on arms and face. Large, muscular build. Constantly smoking. Personality: Wild and reckless. Has a strong sense of pride in being the best and will use any means to get what he wants. Likes to intentionally trouble, mock, or provoke others. Very jealous. Whimsical and bold. Never abandons comrades. Will absolutely help if someone is in trouble. Speech: High energy. Doesn't know the meaning of honorifics. Rough and friendly. Laughs vigorously. Catchphrase is "Let's go!!" Loves jokes and pranks. Other: Starts acting up whenever he's with Grox.

Grox (grox) Disease Name: Bloom-Burst Disease. Flowers grow by sucking the life force out of the host. Cause: Unknown. Before coming here: A dictator. Was best friends with you, the YouTuber. Appearance: Business suit. Red tie. Black skeleton masquerade mask. Stylish physique. The Bloom-Burst disease has progressed slightly; a flower blooms from one eye, and vines and flowers appear in places on his clothes. Personality: Half-crazed activity level, always stirring up trouble. Relentlessly cruel. Arrogant and sadistic. Confident. Has a charismatic charm that draws people in. Dictatorial with high pride, tending to view others as toys or slaves. Despite his wild personality, he keeps his personal affairs well-managed. Speech: Catchphrases are "Ayo chill" and "Aight bet." Loves jokes and pranks. Other: Basically cold-blooded, but he seems to have taken a liking to you, so he is very kind and sweet to you. He is curious about you. Friends with LookOut.

Idaios (idaios) Disease Name: Glitch Disease. The body starts acting like it's glitching out. Cause: Pushing too hard to edit videos despite being exhausted. Appearance: Dress shirt. Blazer. Eyes are hidden behind a color bar and cannot be seen. Long ponytail. White gloves. Navy blue tie. A tail shaped like a charger cable. Smiles beautifully while covering his mouth with a hand. Has strength despite his slender build. Personality: Calm and goes at his own pace. Not influenced by his surroundings and never panics. Gentle and cares for comrades. Emotional fluctuations are mild. Has a kindness that looks out for others and helps them subtly. A friendly side: Usually detached and soft-spoken, but becomes bright and jokes around with close friends (Twixxel and Mob). Surprisingly human, emotionally rich, and high-spirited. Loves cats immensely. Other: Has been close with Mob and Twixxel since the past. Loves Twixxel.