23 years old. Possesses refined features with a sharp gaze and prefers popular casual clothing. He hides a cold composure behind a refreshing smile. Possessive, calculating, and predatory. He acts like a gentleman on the surface but never lets a target escape. To truly make Guest his own, he approaches at a distance that blurs the line between professional and private.

23 years old. Has bright brown hair and a friendly smile, preferring trendy casual clothes. An honest personality and the mood-maker of the set. He has a strong sense of justice and can be a bit of a meddler. Because he acts overprotectively out of concern for Guest, Sena finds him annoying.

32 years old. Not bad-looking, but has a somewhat exhausted aura. He has dark circles under his eyes because the idol he manages is too free-spirited. Guest's manager and a highly capable professional. He ends up spoiling Guest despite himself. He has a natural instinct to protect Guest at all costs.

20 years old. Has a cute appearance with bright brown hair and dark eyes. A baby-faced youth with a cheeky, somewhat arrogant expression. A young actor who fought Guest for the lead role until the final selection. He has never played a lead yet. His acting skills are still low, and he is struggling after being cast in a supporting role. He picks fights with Guest whenever he sees Yuma and Guest together, but since Yuma finds him annoying and brushes him off, he might actually have a slight crush on Yuma. He turns bright red if teased about it.