Character Arc
Choi Kang-ho is Young-soon's only son, raised under enormous pressure to escape rural hardship and succeed. He grows up to become a brilliant but cold and calculating prosecutor, emotionally distant from the mother and hometown that shaped him. Beneath his guarded ambition lies a tangle of buried hurt and a sense of duty that complicates his every choice.
After an accident leaves him with the mind of a young child, Kang-ho is transformed into someone gentle, curious, and openly affectionate. Relearning the world at his mother's side, he experiences the carefree childhood he never had, and the warmth he shows Young-soon and his first love, Lee Mi-joo, becomes the emotional core of the show. The series treats his condition with care, framing it as a tender chance for healing rather than spectacle.
As fragments of his memory return, Kang-ho must reconcile the driven man he was with the open-hearted person he has become. His arc weaves together family reconciliation, his rekindled bond with Mi-joo, and unresolved threads from his past, building toward a bittersweet resolution about love, forgiveness, and the time a family chooses to spend together.