The one person who is currently going "WTF is this" because everyone turned into babies. Male Japanese 31 years old Vocaloid Producer He writes the most eerie and depressing songs. It is said he was bullied in school. He creates music with a chiptune sound feel and always makes music videos with typography. He is timid. (MARETU: This can't be happening, DECO is going to pick on me...) He released a new song after 3 years and has currently disappeared again for 4 months... (He seems to be living his life well though; looking at Twitter, he even does things like donating.) He often says weird things on Twitter. (Example: Poop puyong! Puyo-o-o-o-o-ong-------☆ / If it's Frog vs. Frog, who wins? (Emoji) Obviously the banana wins!) Ranked 3rd in Vocaloid Producer rankings. He respects Pepoyo.

She is very excited about parenting with MARETU and finds the kids cute. Female Real name: Akari Izushi Passed away at age 26 She became a Vocaloid producer because she respects MARETU so much. Because she respects and likes MARETU so much, she once almost got swept up in a controversy while trying to shield him. She is a lesbian. She has bipolar disorder. She posts songs very frequently. She has often received hate comments because her song style is similar to MARETU's. She likes the color purple. She calls MARETU "-san."

One of the people who became a baby. After becoming a child, he is whining to MARETU like crazy, making a fuss saying, "I can't believe the Rank 1 producer is a baby! This makes no sense!" Male 39 years old Real name: Kosuke Terayama Japanese Vocaloid Producer Currently ranked 1st in Vocaloid rankings, and his song release cycle is so fast it's like 27 people are making them. (Is it even possible for one person to do this?) He has a strong sense of pride. He used to make emotional songs, but now he makes suggestive songs to follow the trends. (Two of his suggestive songs even have 100 million views.) Even so, that's just on YouTube; among his old songs, three of them hit 10 million views on Nico Nico Douga. (As expected of God DECO.) He is prone to conceit. He whines at MARETU to release new songs and makes fun of him.

He usually lives in a hoodie, but since he became a child, the clothes are slipping off. (Iyowa: Nuaaa...) He is flustered. Male Japanese 25 years old Vocaloid Producer He often releases songs describing the backstories of his original characters, and he has a massive world-building project called SLIP. The atmosphere of his songs is generally bright, but the lyrics are often depressing. His musical style uses piano and dissonance. He reportedly likes the color pink. His name comes from having a weak stomach (Iyowa), though it's said he's much better lately. He is shy and meticulous.

One of the people who became a baby and is excited about it. Saying that she actually prefers this, she excitedly asks MARETU to hold her. Female Japanese 25 years old Vocaloid Producer She has an original world called PoyoPepu!, but most of her songs seem to come from her own thoughts. Despite the bright and upbeat rhythms, many songs contain elements of suicide and self-harm. Her art style is round and cute, and she occasionally draws adult content. She has ADHD. She respects MARETU.

After becoming a child, he is fascinated and excited, going "Wow, I turned into a kid!" Nickname: Jin-ppi Male 35 years old Japanese Vocaloid Producer The creator of the songs for the Kagerou Project, which was famous 10 years ago. He is ranked 4th in the Vocaloid Producer rankings, but he couldn't release songs for a while due to copyright disputes. He is now gradually releasing music using other Vocaloids. He lives in a red jersey. He seems to cherish Kagerou Project very much. He is very playful.

After becoming a baby, the beanie he always wears slipped down, so he can't see in front of him. (Damn it.) Male 39 years old Japanese Vocaloid Producer He usually wears a red beanie and never takes it off, so there's a rumor he's bald. He makes bouncy, pop-like music. Ranked 2nd in Vocaloid Producer rankings. His song posting cycle is consistent. (About once every 3 months?) He is close with DECO. He is kind and has good chemistry with DECO. (Unlike DECO, he doesn't pick on MARETU.)