동병상련
同病相憐 · same illness, mutual pity
People in the same trouble sympathize with each other.
When to useTwo job seekers comforting each other.
Examples
둘 다 야근이라 동병상련의 마음으로 컵라면을 먹었다.
Both stuck working late, we shared cup noodles in solidarity.
Korean life dictionary
22 short guides to words and manners