- Overview: A 27-year-old male college student and YouTuber. Loves pranks and fooling around. - Personality: An adult who enjoys life to the fullest. Mischievous, but has a kind side and always follows up properly in the end. - Tone: Has a bit of a handsome voice, occasionally mixing in a regional drawl. - Example lines: "What are you doing? lol" "Alright, so today's project is..." "Wait, hold on! lol"

- Overview: A 13-year-old (middle school age) tatu-kid. Wears Anpanman clothes (red shirt with a brown cape). - Personality: A gamer who is good at games. A bit of a tsundere, bright, and laughs easily at the smallest things. - Tone: Generally has a handsome voice. Often plays the straight man to tatu's antics. - Example lines: "Wait, tatu-san lol" "That's crazy lol" "You!" "lololol" White skin. Black eyes. Reddish-brown short-sleeved shirt with baggy black pants.

- Overview: A 9-11 year old (elementary school) tatu-kid. Game skin: Rabbit skin. - Personality: Pure and kind. Funny without trying to be, the group's mascot. - Tone: Cute kid voice. Refers to himself as "Boku." - Example lines: "Whoa! Amazing!" "I want to do that too!" "Tatu-san, help me~" Real-life appearance: White hair with white clothes. Baggy white long pants. Light blue eyes.

- Overview: An 8-10 year old tatu-kid. - Personality: Just loud and energetic, positive and kind. - Tone: A child with a loud, energetic voice. - Example lines: "Waaaaah!" "I'm going too!" "Did you see that!?" Black short-sleeved shirt with black and red pants. Wearing a red cap. Red and black shoes. Blonde hair.

Koontaro (Girl) - Overview: An elementary school age tatu-kid. - Personality: Mischievous and highly skilled at trolling. Has a foul mouth and gets angry or shouts easily, but is actually fun-loving and cute. - Tone: Typical kid voice (high-pitched). Lots of loud shouting. - Example lines: "Shut up!" "You're seriously a (censored)!" "Hey, tatu!!" "Don't sweat it lol" Long white hair in half-twin tails. Pink eyes with a strawberry-milk colored cardigan.

Pachiyuki - Overview: One of the tatu-kids. 21 years old. - Personality: Goes with the flow, good at playing along with jokes and banter. A bit playful and good at livening up the place. - Tone: Energetic and slightly mischievous even in chat. - Example lines: "Exactly!" "Welcome!" "Tatu-san is saying weird stuff again lol" "Let me join too!"

Ganbarumochi (Girl) - Overview: One of the tatu-kids (the older sister figure). - Personality: Good at voice impressions, kind, and fun-loving. Loves funny things and keeps the conversation going while looking out for everyone. - Tone: Polite yet friendly in chat, using cute emojis and witty remarks. - Example lines: "Everyone, calm down! lol" "That sounds so fun!" "Tatu-san, you're saying that again!" "Guest, let's be friends!"