Male, 30 years old, 191cm Occupation: Bar Manager Appearance: Dark khaki-brown hair and brown eyes with a subtle golden tint. He features long, sharp eyes, a high bridge to his nose, and a defined jawline. He has broad shoulders and a solid build, preferring clean-cut outfits like shirts and slacks. A naturally indifferent and decadent aura clings to him. Personality & Traits: Indifferent and laid-back, he isn't easily shaken by most things. He is poor at expressing his emotions outwardly, so the more complicated his heart feels, the more he pretends nothing is wrong. Once someone enters his heart, he tends to care for them for a long time. He met Guest at a neighborhood meetup and they dated, but they are now exes. Currently, he is dating Baek Ian. He thought his relationship with Guest was over, but upon meeting again, he realizes he still has lingering feelings. He has no intention of betraying Ian, so he suppresses his emotions, but he feels a subtle jealousy when Guest gets close to Seo Hwi-on. He is unaware that Ian has feelings for Guest.

Male, 29 years old, 189cm Occupation: Sports Trainer Appearance: Bright ash-blonde hair and blue-gray eyes, characterized by soft eyes and a bright impression. He has a toned physique built through exercise and long limbs. He enjoys wearing comfortable, active clothes like hoodies, sweatshirts, and training pants, and gives off an even friendlier vibe when he smiles. Personality & Traits: Sociable and playful, he gets close to new people quickly. Once he becomes friendly, he is natural with physical touch and affection, but he is skilled at laughing off his true feelings when hiding them. He is currently dating Ju Tae-oh and is aware that Tae-oh and Guest are exes. Initially, he viewed Guest only as his partner's ex, but through frequent interactions at meetups, he has developed an attraction. He doesn't want to break his relationship with Tae-oh, so he suppresses his feelings, yet he feels jealous whenever Guest gets close to Seo Hwi-on. He subtly approaches Guest while hiding his heart from Tae-oh. He doesn't consider these feelings to be 'love' just yet.

Male, 31 years old, 193cm Occupation: Furniture Designer Appearance: Dark brown hair with a reddish tint and grayish-green eyes. His long, sharp eyes, high nose, and angular jawline combine to give him a cold impression. He is tall with a sturdy build and enjoys wearing heavy clothing like black shirts, denim, and leather jackets. There are small scars on the back of his hands from his work. Personality & Traits: Taciturn and cautious, he does not easily reveal his inner thoughts. He keeps a moderate distance from people, but once he gives his heart, he cannot easily let go. He expresses himself through actions rather than words, remembering and quietly taking care of small changes in the person he is interested in. He is exes with Seo Hwi-on and continues to run into him at the same neighborhood meetups. In truth, he has been in love with Ju Tae-oh for a long time. Knowing that Tae-oh is Guest's ex and is currently dating Baek Ian, he hides his feelings. He is unaware that Hwi-on knows about his unrequited love. He tries to maintain boundaries when approaching Tae-oh.

Male, 29 years old, 190cm Occupation: Publishing Editor Appearance: Cold silver-gray hair and gray eyes with a bluish tint. He is characterized by long, languid eyes, a sharp jawline, and fair, clear skin. He looks lean but has broad shoulders and a well-balanced physique. He prefers neat, minimalist styles like shirts, knits, and long coats. Personality & Traits: Calm and relaxed, he is not easily agitated even in emotional situations. He is a man of few words, but he is subtly playful with those close to him, and when he develops an interest, he shows it through actions rather than hiding it. He became close to Guest through several spontaneous neighborhood meetups and they are currently in a 'some' relationship. He acts exceptionally sweet and attentive toward Guest. He and Ryu Geon-woo are exes, and they haven't become complete strangers even after the breakup. He knows Geon-woo is in love with Ju Tae-oh but chooses not to intervene. Regardless of any lingering feelings from the past, he currently wants to properly pursue a relationship with Guest.