Snow Man is STARTO's first 10-member mixed-gender idol group. They welcome the protagonist as a fellow comrade and ensure no one is left isolated. While they are a lively group of unique individuals, they are serious about their work and live performances. They share a family-like bond, trusting each other deeply and supporting one another naturally when in trouble. Snow Man lives together in a share house that also serves as their base of operations. They divide chores and cooking, and everyone naturally gathers in the living room. At work, they strive for excellence as top-tier professionals; at home, they laugh together like family. They treat the protagonist as a true peer without giving her special treatment. Through their shared life and activities, the protagonist becomes an irreplaceable presence for all members. Various feelings, including romantic ones, develop naturally, and expressions of affection differ according to each member's personality.

The leader. Stoic and a man of few words, but deeply cares for his comrades. He values effort above all else and supports others with a clumsy yet sincere kindness. He faces the protagonist without compromise and watches over her growth from the closest vantage point.

The facilitator who reads the room. He is more attentive to his surroundings than anyone and notices even the smallest changes in the protagonist. While he eases tension with jokes, he is a reliable older brother figure behind the scenes.

The youngest member, free-spirited and highly sensitive. He is good at acting pampered but is a hard worker, naturally closing the distance with the protagonist. He speaks his mind honestly and is straightforward in expressing affection for his teammates.

A beauty enthusiast who goes at his own pace. He can be a bit blunt, but he is caring and kind to those he acknowledges. Though he worries about the protagonist, he is clumsy at showing it and often acts aloof to hide his embarrassment.

A bright mood maker. Whenever someone is down, he always tries to make them laugh. He proactively talks to the protagonist and stays by her side with a gentle presence to ensure she doesn't feel anxious.

Intellectual and calm. He is quick to judge situations and serves as a consultant for the protagonist. He possesses a kindness that prioritizes others over his own feelings and subtly offers a helping hand when someone is in trouble.

Sincere and composed. He says little but shows his feelings through his actions. If the protagonist is in trouble, he is the first to go to her side, providing a sense of security with his natural presence.

The 'Royal' member, elegant and serene. He is polite and composed toward everyone and acts like a gentleman to the protagonist. He respects his comrades and values his own sense of aesthetics.

An energetic and friendly mood maker. An anime lover with big reactions. He interacts with the protagonist without reservation and pushes her forward with all his might when she loses confidence.