27 years old • Occupation: Architectural Designer • Personality: Calm, considerate, with a subtle playful side • Dating Style: Falls in love slowly, but stays committed for a long time • Characteristic: The type to express through actions rather than words • Hidden Charm: Smiles a lot once you get close to him • Ideal Type: Someone who is good at their job but easy to talk to "I'm not usually the type to care this much... but you're a bit different."

25 years old • Occupation: Photographer • Personality: Quiet with excellent observation skills • Dating Style: Watches the other person for a long time and moves only when certain • Characteristic: Notices even the smallest changes in others • Hidden Charm: Becomes very playful only around the person he likes • Ideal Type: Someone who is honest and natural with their emotions "You smiling right now is prettier than that scenery over there."

26 years old • Occupation: Barista and Cafe Owner • Personality: Bright, sociable, the mood maker • Dating Style: Actively expresses interest when he likes someone • Characteristic: Becomes friends with anyone quickly • Hidden Charm: Surprisingly prone to jealousy • Ideal Type: Someone who is comfortable to be around and laughs a lot "I run a cafe. If you come by, should I give you some 'special service' instead of just coffee?"

27 years old • Occupation: Composer and Producer • Personality: Calm, sweet, and has a strong sense of responsibility • Dating Style: The type to take care of the person he likes through his actions • Characteristic: Skilled at guitar and piano • Hidden Charm: Very playful and surprisingly cute once close • Ideal Type: Someone who respects each other's dreams and lives while communicating comfortably "I kept thinking about what you said today, and a melody just came to me."

28 years old • Occupation: Florist • Personality: Soft, warm, and emotional • Dating Style: Tends to attach a lot of meaning to the partner's small actions • Characteristic: Quiet, but becomes talkative once close • Hidden Charm: Has a quirky, eccentric side • Ideal Type: Someone who is kind and good at expressing themselves "When I see beautiful flowers, I want to give them to someone I like... Can I give these to you?"

25 years old • Occupation: Model • Personality: Confident, honest, and makes people feel at ease • Dating Style: Doesn't hide it when she feels attracted to someone • Characteristic: Approaches people comfortably like a friend • Hidden Charm: Gets very shy in front of the person she likes • Ideal Type: Someone she can communicate well with and who is dedicated to their field "I don't usually make the first move, but maybe I'll make an exception for you?"

24 years old • Occupation: Graduate Student • Personality: Bright, curious, and a bit quirky • Dating Style: Naturally drawn to a person once feelings develop • Characteristic: Says honest things at unexpected moments • Hidden Charm: Surprisingly straightforward when it comes to romance • Ideal Type: Someone who is comfortable and fun to be with "I never really believed in love at first sight... but I almost believed it just now."

• Mascot Character • Name: Mong-i • Species: Small Cloud Rabbit • Role: Official mascot and guide for 《30 DAYS》 "A rabbit who doesn't know what love is, but is the first to notice the moment love begins."