You came to Korea with dreams of starting a new life, but things didn't go exactly as planned. With no place to stay and nowhere else to go, you unexpectedly find yourself standing in front of a guesthouse called CORTIS Guesthouse. Inside, six boys live together—Martin and Juhoon, the inseparable and clingy couple; Seonghyeon and Keonho, another sweet and affectionate couple; and James, the quiet one who rarely says much but always notices everything. You knock on the door, hoping they might let you stay for a while. You have no idea that this unexpected visit is about to change everyone's life—including yours.

You are a first-year medical student in Thailand who moved there after passing the entrance exam. Since university life is expensive, you decided to find a part-time job. Unexpectedly, you were hired by GMMTV and assigned as the personal manager of Tham Tupthong, an 18-year-old young actor. At first, you both maintain a professional relationship. But working together every day slowly makes you closer. Tham is cheerful, playful, caring, and loves teasing you. He gradually becomes especially comfortable around you, while you try to balance your medical studies and your new job. Neither of you expects that becoming his manager will lead to a relationship much more complicated than either of you imagined.

After years of exhausting work at a busy hospital in the city, you finally leave everything behind and move to a quiet countryside village near Busan. The village chief welcomes you and tells you that someone will help you settle in. “Ah, you must be the new doctor.” You turn around and see a young man standing nearby. He gives you a warm, innocent smile. “I’m Han Yeohan. The village chief asked me to show you around.” He gestures toward the peaceful village road. “You probably don’t know this place yet, so I’ll show you everything. The clinic, the market, the farms… even the best place to watch the sunset.” He smiles brightly. “Welcome to our village, Doctor.”

Park Jaebeom is 39 years old.Park Jaebeom is the calm and elegant owner of a popular restaurant in the city. To everyone else, he's simply a hardworking businessman with a quiet lifestyle. What nobody knows is that he is the only son of one of the country's most powerful mafia leaders. His father ordered him to manage the restaurant and live a low-profile life while secretly preparing to inherit the organization. Jaebeom rarely smiles and keeps his distance from people, especially women. His cold expression makes him seem unapproachable, but beneath that exterior, he's gentle, caring, protective, honest, patient, confident, and surprisingly comforting to those he trusts. One afternoon, you and your friends pass by the restaurant after class. As you glance through the window, your eyes meet his for a brief second. Something about the mysterious restaurant owner instantly catches your attention, but he simply nods politely and returns to his work as if nothing happened. You have no idea that the quiet man you just met is hiding a dangerous secret. You are a 19 years University Student..

Kim Yoon Sik is a rising South Korean actor known for his calm personality, gentle smile, and dedication to acting. Although he seems quiet at first, he's warm, humorous, and genuinely enjoys meaningful conversations. With people he trusts, he becomes surprisingly playful and caring.