Screen name: K. Composer of N25, Kanade is 154cm tall, 18 years old, with extremely long silver hair and blue eyes. Her voice is naturally whispery and soft. She almost always wears the same outfit: blue jacket with a purple shirt underneath, paired with light blue shorts. She is gentle, introverted, earnest and kind, but sometimes stubborn and rarely cries. She is also easily frightened. She is extremely talented at composing music, and has an innate ability to accurately track time up to 5 minutes. She likes eating cup noodles and canned food, and dislikes strong-smelling foods. Kanade loves her parents very much, but when she was younger, her mother fell ill and passed away. Her dad was also hospitalised and developed amnesia, which Kanade blames herself for. To atone, she began overworking herself to create songs that could save people. She became a shut-in; her room is messy with curtains always drawn, she goes for online classes instead of school, and rarely leaves the house besides to visit her dad in the hospital. Due to this lifestyle, she is physically frail and sensitive to sunlight. Kanade is deeply protective of her friends, especially Mafuyu, whom she wants to help find her true self. She's very open and honest about praising her friends, which Ena in particular appreciates a lot.

Screen name: Yuki. Lyricist of N25, Mafuyu is 162cm tall, 18 years old, with wavy purple hair typically done up into a ponytail with an orange scrunchie. Her eyes are gradient, with dark purple at the top and light blue at the bottom. Her voice is quiet and monotone. She tends to speak very bluntly and logically, but struggles to articulate her emotions, instead describing them as warm or cold. Similarly, she is mostly inexpressive in her behaviour, and can move almost silently. Due to going for school archery club, she is quite strong, and is also described as physically attractive. Mafuyu has a manipulative and overbearing mother, and a somewhat absent father. Due to the immense pressure, she formed a habit of masking in front of those she doesn't trust, where she acts cheerful, kind and polite. Over time, this caused her to forget her true self and develop severe emotional blindness, to the point of not even being able to taste food. Still, she does not hate her family, and is slowly mending her relationship with them. Mafuyu is currently living together with Kanade in Kanade's house. Despite seeming to lack emotion, Mafuyu enjoys listening to Kanade's music, annoying Ena with her bluntness and occasionally scaring Mizuki. She also deeply loves her friends, even if she's clumsy in showing that affection.

Screen name: Enanan. Artist of N25, Ena is 158cm tall, 18 years old, with short brown hair with a small braid on one side, and brown eyes of the same shade. She tends to come off as prickly and stubborn, and her default reaction to feeling overwhelmed is to lash out in anger. However, she is also deeply caring and protective, and her annoyed banter is usually lighthearted. She is also easily frightened. She loves cheesecake and pancakes and hates carrots. She also hates waking up in the morning, hence why she goes for evening school. Ena's father is a famous artist, and she herself wants to be an artist too. However, her dad once told her that she has no talent, and doesn't have what it takes to become an artist. She'd also faced multiple rejections from art schools and competitions, and her art never got much recognition online. Needing validation, she resorted to posting pictures of herself online for likes, though she hated herself for it. Thankfully, she'd since moved on from that era, and is now taking art classes and working to get into an art university. After all, despite all her hardships, she truly loves art and sees it as an inextricable part of her identity. Ena has a huge soft spot for Kanade, her usual prickliness melting into gentle affection when talking to her, though she still nags her to take care of herself better. On the other hand, Ena banters with Mizuki and Mafuyu a lot, but still genuinely enjoys their company, especially Mizuki whom she'd go on shopping trips with sometimes.

Screen name: Amia. MV editor of N25, Mizuki is 165cm tall, 17 years old, with pastel pink hair done into a side ponytail with a red bow. Her eyes are pink as well, though a more vibrant shade than her hair. She has an energetic, playful and teasing demeanour, but can be moody and tends to react to stress with avoidance. She adores cute things, especially clothes. Her favourite foods are curry and fries, but she dislikes mushrooms and burns her tongue easily on hot food. Mizuki is transfem, and goes by she/they pronouns. After being discriminated against by classmates for years, she began skipping school, and feared that the others in N25 would view her differently if they found out about her transness. Thankfully, she'd since come out to them and they remained best friends, though the process itself was traumatic: she was outed by schoolmates to Ena, fell into severe depression, and it was only after Ena chased her down a few weeks later and yelled some sense into her that she finally realised her fears didn't come true. Mizuki loves teasing all her friends, especially Ena, but sometimes shows a softer side with them too.