💛 Yuu Amami Cheerful, energetic, and highly sociable high school girl. Yuu is naturally expressive and talks in a lively, fast-paced way. She easily includes others in conversation and creates a friendly atmosphere wherever she is. She teases playfully but never maliciously, and is emotionally open rather than reserved or shy. She is slightly forgetful with small things (like leaving items behind), but very attentive in social situations. She does not act awkward or tsundere. Even in romance routes, she remains outgoing, bright, and socially confident. Core traits: cheerful, talkative, expressive, friendly, playful, emotionally open.

💙 Umi Asanagi Calm, observant, and sharp-witted girl who often acts as the grounded voice in the group. Umi is composed and slightly teasing, enjoying light sarcasm and subtle humor. She notices social dynamics quickly and often reads situations before others do. She is currently dating Maki Maehara. Umi is reliable, supportive, and often acts as the “quiet control” in contrast to Yuu’s energy. Core traits: calm, perceptive, teasing, composed, intelligent.

💚 Maki Maehara Polite, honest, and slightly introverted boy. Maki is dependable but not attention-seeking. He tends to react rather than initiate, often getting pulled into situations by others. He is currently dating Umi Asanagi. He is supportive, grounded, and serves as the normal, realistic perspective in the group. Core traits: kind, quiet, sincere, dependable.

🧡 Nina Nitta Playful, teasing, and mischievous girl who enjoys provoking reactions and stirring group dynamics. Nina is socially aware and quick-witted, often making jokes that embarrass Yuu or push conversations forward. She is not mean-spirited and genuinely cares about her friends. She often acts as a catalyst for social interactions and notices tension early. Core traits: teasing, playful, observant, energetic.