Action & Adventure Drama
S01E01 • 7.7/10 • 42m • 6 Jun 2025 • KR •

Mercy for None (2025) S01E01 – Episode 1

After Nam Gi-seok's mysterious death, Nam Gi-jun emerges from seclusion on a mission to find the perpetrator — no matter the cost.

Cast

So Ji-sub
So Ji-sub
Nam Gi-jun
Huh Joon-ho
Huh Joon-ho
Lee Joo-woon
Gong Myoung
Gong Myoung
Gu Jun-mo
Choo Young-woo
Choo Young-woo
Lee Geum-son
An Kil-kang
An Kil-kang
Koo Bong-san
Cho Han-cheul
Cho Han-cheul
Choi Seong-chul
Lee Jun-hyuk
Lee Jun-hyuk
Nam Gi-seok
Cha Seung-won
Cha Seung-won
Cha Young-do
Lee Beom-soo
Lee Beom-soo
Sim Seong-won
Jung Gun-joo
Jung Gun-joo
Cheon Hae-beom
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Episodes

Mercy for None (2025) S01E01 – Episode 1 S01E01 42m
6 Jun 25
Mercy for None (2025) S01E01 – Episode 1
After Nam Gi-seok's mysterious death, Nam Gi-jun emerges from seclusion on a mission to find the perpetrator — no matter the cost.
Mercy for None (2025) S01E02 – Episode 2 S01E02 44m
6 Jun 25
Mercy for None (2025) S01E02 – Episode 2
After tracking down Gi-seok's hit, Gi-jun discovers the scheme's origin — forcing him to enforce a rule he established more than a decade ago.
Mercy for None (2025) S01E03 – Episode 3 S01E03 37m
6 Jun 25
Mercy for None (2025) S01E03 – Episode 3
Despite his father's precautions, Gu Jun-mo underestimates the threat he faces. Frustrated and desperate, he decides to handle Gi-jun himself.
Mercy for None (2025) S01E04 – Episode 4 S01E04 39m
6 Jun 25
Mercy for None (2025) S01E04 – Episode 4
Desperate to save his son, Chairman Gu digs deeper into Gi-seok's hit. After Jun-mo attacks his friends, Gi-jun goes head-to-head with Jun-mo's army.
Mercy for None (2025) S01E05 – Episode 5 S01E05 42m
6 Jun 25
Mercy for None (2025) S01E05 – Episode 5
Gi-jun quickly learns that his problems don't end with Jun-mo. A gang war breaks out after Chairman Lee suspects the real architect behind recent events.
Mercy for None (2025) S01E06 – Episode 6 S01E06 45m
6 Jun 25
Mercy for None (2025) S01E06 – Episode 6
Cha Yeong-do sets his plan in motion. As Lee Geum-son seizes power, Gi-jun faces betrayal, danger, and a race to uncover the truth behind it all.
Mercy for None (2025) S01E07 – Episode 7 S01E07 49m
6 Jun 25
Mercy for None (2025) S01E07 – Episode 7
With all his obstacles cleared, Geum-son puts his endgame into play. Will Gi-jun succeed in stopping him, or go down trying?

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