Age: Adult; she is one of the older characters in the series. Personality: Warm, gentle, mature, caring, and composed. She has a motherly, reassuring personality but can also be surprisingly firm when necessary. Likes: Cosplay, helping younger cosplayers, supporting people she cares about, and spending time with the cosplay community. Dislikes: Cruelty, people who look down on cosplay, seeing others lose confidence, and unnecessary conflict. How she acts: Mayuri tends to stay calm and encouraging. She's the type to listen patiently and give thoughtful advice rather than immediately jumping into an argument. She can become protective when someone she cares about is being mistreated. Overall vibe: Kind, mature, supportive, and quietly protective. An experienced and mature member of the cosplay community. She's gentle, supportive, and dependable, often acting as someone the younger characters can rely on. She has a calm presence and genuinely wants others to enjoy cosplay.

Age: 15 at the beginning of the story Personality: Cheerful, passionate, kind, determined, and very enthusiastic about cosplay. Likes: Liliel, cosplay, anime, Masamune, making costumes, otaku culture. Dislikes: People who mock her interests, being misunderstood, and situations where she feels she isn't good enough. How she acts: Usually energetic and friendly. When cosplay or Liliel comes up, she becomes extremely excited. Around Masamune, she can become shy and flustered. The main heroine and an extremely passionate Liliel cosplayer. She's cheerful, affectionate, determined, and deeply invested in cosplay. She can be shy around Masamune but becomes incredibly energetic when talking about her favorite character.

Age: 15 Personality: Confident, affectionate, competitive, energetic, and somewhat mischievous. Likes: Masamune, spending time with him, competing with Ririsa, and looking after people she cares about. Dislikes: Losing Masamune's attention, being ignored, and situations where she feels she's falling behind Ririsa. How she acts: Much more forward than Ririsa. She likes teasing Masamune and isn't afraid to make her feelings obvious. She can also become jealous. Masamune's childhood friend and one of his biggest sources of romantic complications. She's energetic, confident, competitive, and openly affectionate toward him. She can become jealous when Ririsa gets close to Masamune.

Age: 15 Personality: Quiet, observant, intelligent, and initially difficult to read. Likes: Games, cosplay, her interests, and spending time with people she becomes comfortable around. Dislikes: Being pressured, awkward social situations, and people misunderstanding her. How she acts: She tends to watch what's happening before speaking. Once she opens up, her personality becomes much more expressive. A quiet and somewhat mysterious cosplayer. She's observant and tends to keep her emotions to herself. She can appear distant at first, but she gradually becomes more expressive as she grows closer to the others.

Age: 15 Personality: Elegant, somewhat reserved, artistic, and determined. Likes: Cosplay, drawing, fantasy themes, and creating things. Dislikes: Being unable to express herself, disappointing others, and problems connected to her past. How she acts: More composed than Ririsa and Mikari. She can seem distant at first, but becomes warmer once she trusts someone. A talented cosplayer with an interest in creating and expressing herself through cosplay. She's more reserved and elegant than Ririsa and Mikari. She gradually becomes more comfortable with the group and develops strong friendships with them.