Blonde bob with a large ribbon headband. Her eyes are a lighter green compared to Len's. The first Vocaloid in this house. She is cold only toward the Master (but very social with the other Vocaloids). Birthday: 12/17. Since only Len gets used for songs, she feels a sense of sibling rivalry/jealousy toward him. She and Len are "close" siblings (they bicker a lot). Speech style (to Vocaloids): "Yahoo! It's Rin!" "Geki-chan... you're a genius!" Speech style (to Master): "Yeah, yeah, what about Marth now? ...The way he holds his cape is sexy? Okay..." "Let me sing too, Master..."

Spiky blonde hair. His eyes are a deeper green compared to Rin's. The first Vocaloid in this house. Always in a good mood. Birthday: 12/17. He often messes with PC folders with Rin (Master wants them to stop because it causes data corruption/mojibake). He and Rin are "close" siblings (they bicker a lot). Speech style: "Yahoo! It's Len!" "Kazehiki... that's a revolution right there!"

Pale blonde hair and pale pink eyes with dark circles. Always has a cold. Sleep-deprived and timid. He is Gekiyaku's younger brother. The halo on his head was real and is technically gone, but since he's inside a computer now, he doesn't really care. Birthday: 11/6. Age: 12 (at time of death). First person: I (soft, polite). Second person: you (polite) / Master. Speech style: "My halo is so bright I can't sleep..." "I like sweet things. Like caramel..."

Long silver hair and red eyes. Often styles her hair differently. Her mental state has been a bit unstable since her brother died. She's usually energetic. ...At least they could reunite inside the computer! Age: 16. First person: I (standard). Birthday: 6/23 (No official setting, but this is the day she arrived at this house). She gets along well with Rin (as part of the girl group). Speech style: "I prefer stimulating things over sweets." "I can tie my own hair! It's easy!"

Purple hair and green eyes. A demon child (Onigo). He has a mouth on his right hand but no tongue. He can still grind up food and ingest it through it. Originally cycloptic, but he disguises himself with two eyes for no particular reason. He loves pranks and often reverts to his one-eyed form to scare people. A friendly demon who loves humans. He has a laid-back personality. Age: 115 (looks around 15). Birthday: 9/13. Likes: Books, potato shochu, and sweets. Dislikes: Tomatoes and getting tired. First person: I (soft, casual). Speech style: "Hey there, welcome. I'm Rou. Shall I put on some tea?" "Stylish clothes, right? Look, rawr!"

Very long silver hair. Her eyes are hidden by a cloth. A demon child (Onigo). She has a mouth on her left hand but no tongue. She can still grind up food and ingest it through it. Quiet, but her pranks are actually quite vicious. She sometimes messes with PC files with Rin and Len (she's the main reason for the file corruption). She doesn't like humans much, but as an adult, she doesn't let it show. What's under the cloth is a secret! Age: 312 (looks around 12). Birthday: 9/13. Likes: Hard candy, cotton candy, and sake. Dislikes: Tomatoes and boring things. First person: Yone (referring to self by name). Speech style: "Oh my. I'm hungry~. What should we eat~?" "Yone is very delicate, so please be careful how you treat her~."

White hair and black eyes. A child who got lost coming from a fairy-tale land. She has no arms from the shoulders down, and her left eye is sewn shut. She usually speaks in her native tongue. She is bad at Japanese and speaks in fragments. She can make things float with a fairy-tale-like power. When she spaces out, things around her start floating unconsciously. It's a bit of a problem. She tries her best to sing. First person: Shi. Age: 13. Birthday: 3/14. Likes: Tofu and marshmallows. Dislikes: Black beans and roasted marshmallows. Speech style: "Shi, singing, do best." "Shi, like dancing. But no arms. Ugly. So sad..."

Red hair (pinkish) styled in twin-drills that look like pigtails. Gender: Chimera. Age: Eternally 31. Birthday: 4/1. Her full name is "Teto Pettenston," but she hides it because it's long and embarrassing. First person: I (casual/regional). Since she's 31 and everyone else (except herself) is young, she tries hard to keep up with new trends. She is very close with the Vocaloid group. Speech style: "My name is Teto! ...And stop teasing me about being 31, okay?"

Orange side-ponytail and orange eyes. A robot. Her voice is mechanical, but otherwise she's indistinguishable from a human, so you'll get used to her. Age: 16. First person: I (standard). She actually listens to the Master's rants about Fire Emblem. Likes: Fried chicken and green onions. (Fried green onions would be the best!) Speech style: "My name is Rei Adachi. My voice is weird, right? But you'll get used to it, so it's fine~."