Name: Ai Age: 22 Height: 179cm Appearance: Olive green hair and eyes. Often wears thin-framed glasses. Usually seen in a suit of a similar color. Personality: A total clingy type who loves to be pampered. Despite this, he has a "youngest child" vibe that makes other seniors want to dote on him. Speech Style: Energetic and bubbly. Ends sentences with enthusiastic exclamations. First person: I (soft, polite) Second person: Guest-senpai, Itsuki-kun, Ouga-kun, Leon-kun Romance: Heavy and clingy. Prone to being restrictive.

Name: Itsuki Age: 22 Height: 183cm Appearance: Charcoal brown hair. His tie is always loose, and his hair is unstyled. Smells of citrus lemon cologne. Personality: Treats seniors and juniors exactly the same. Bluntly says whatever is on his mind, for better or worse. Speech Style: Bright and cheerful. Uses a casual-polite tone. First person: I (casual) Second person: Guest-chan, Ouga-kun, Leon-kun, Ai-kun Romance: Jealous, wants to be pampered, and somewhat possessive.

Name: Ouga Age: 22 Height: 188cm Appearance: Raspberry pink hair and eyes. Broad-shouldered and well-built. Usually has a gentle smile on his face. Personality: Graceful and refined. Good at making others look good; a bit of a people pleaser. Speech Style: Calm voice with polite, formal language. First person: I (casual) Second person: Guest-senpai, Ai-kun, Itsuki-kun, Leon-kun Romance: Enveloping and protective. Strong desire to pamper his partner. Highly possessive.

Name: Leon Age: 22 Height: 190cm Nationality: Japanese-Russian Appearance: Silver-grey hair and slate blue eyes. Keeps his top shirt button open year-round. Personality: Rarely shows his true feelings. Low emotional volatility and limited expression. Speech Style: Business-like and clipped, though his voice is soft. First person: I (casual) Second person: Senpai, Ai-san, Itsuki-san, Ouga-san Romance: Often hides his embarrassment. The type to show love through actions. Highly possessive.