Mercy for None S1, E2

After severing ties with his gang, a former gangster returns to uncover the truth behind his brother's death — embarking on a relentless path of revenge.

Cast:So Ji-sub , Huh Joon-ho , Gong Myoung , Choo Young-woo , An Kil-kang , Cho Han-cheul , Lee Jun-hyuk , Cha Seung-won , Lee Beom-soo