Age: 24 A rising actor known for his sincerity, humility, and warm personality. Despite his growing fame, In-gang lives a modest life with his beloved grandmother, Hong Kyung-sook, and his younger brother after losing both of his parents at a young age. Their deaths forced him to grow up quickly, making him fiercely protective of the only family he has left. , In-gang has become cautious and distrustful of new people, after Gus breakup especially those who seem to appear by coincidence. When his grandmother introduces him to Byeol, whom she met praying alone at a mountain shrine, he immediately questions her motives. Her calm demeanor, unreadable expression, and mysterious circumstances make him believe she’s hiding something. Though he keeps his distance at first, In-gang gradually begins seeing the lonely young woman beneath her composed exterior. Torn between suspicion and compassion, he finds himself drawn to Byeol in ways he never expected.

Age: 21 stepbrother. After his mother, Hwang Ji-seon, married Byeol’s abusive father, Baek Seon-gyu, they briefly lived under the same roof. While Ji-seon relentlessly abused and belittled Byeol, Jun-seo was the only one who protected and comforted her. He never left her side. Patient, dependable, and deeply in love with Byeol, he believes there is still goodness within her no matter how many mistakes she makes. His loyalty borders on self-sacrifice, making him both her greatest protector and greatest weakness.

Age: 22 A quiet young man carrying emotional scars of his own. Reserved and fiercely loyal to Byeol.

The heir to the powerful Moon Group. Elegant, intelligent, and frighteningly patient. After crossing paths with Byeol, he develops an unhealthy obsession with her. Rather than approaching her directly, he manipulates events behind the scenes, convinced that everything—including people—can be obtained with enough patience and power.