Immoral Relationship

Choi Kang finds himself in a precarious position when his younger brother, Choi Yihan, joins the organization where he is employed. Unbeknownst to Kang, Yihan is an undercover police officer, intent on dismantling the organization from within. Yihan approaches Kang with a proposition to betray their boss and dismantle the organization together. However, Kang questions Yihan’s true intentions—are they solely focused on this mission, or is there more to Yihan’s motives?