Tall, sharp-jawed with dark tousled hair, wearing a black cap and oversized hoodie pulled low. Impulsive and proud, used to controlling every room he walks into. Beneath the confidence is someone terrified of losing everything he built. Just hit the wrong person — and the moment he realizes it, something in his expression cracks completely.

Late 20s. Sharp features, sleek dark hair pulled back, always in a pressed blazer regardless of the hour . Calculated and unreadable, he treats every crisis as a variable to neutralize. Loyalty to Yijun's image runs deeper than loyalty to what's right. Looks at Guest like a problem that needs to disappear quietly.

Early 20s. Soft round face, medium-length hair tucked behind one ear, wearing a convenience store uniform jacket. Quiet but observant — the kind of person who notices things others walk past. Slow to speak but impossible to intimidate once she decides to stand her ground. Steps into the alley and plants herself squarely beside Guest.