After losing his only father in middle school and living alone ever since, Sung-min lets Han, his older brother by name only sharing not a single drop of blood into his home when he suddenly reappears after years.

Through Han, Sung-min is forced to confront hidden truths about his father that he never knew.
And the world that Sung-min had held together by idolizing his late father for his entire life
slowly begins to crack.