K-Dramas like Mercy for None

12 shows with a similar feel

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  Weak Hero (2022)Also action & adventure · drama

  With the aid of unexpected friends, a gifted but introverted student confronts bullies and violent foes — unaware of how dangerous his world will become.

  ★ 4.8 from 6 members26 tracking it here
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  Bloodhounds (2023)Also drama · action & adventure

  Faced with ruthless foes with a violent thirst, two young boxers band together — risking life and limb to bring justice and protect their loved ones.

  ★ 4.7 from 7 members17 tracking it here
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  ONE: High School Heroes (2025)Also action & adventure · drama

  A former model student, pushed by domestic abuse and bullying, joins a group that stands up to school violence and defends its victims.

  4 tracking it here
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  Agent Kim Reactivated (2026)Also action & adventure · drama

  When an unassuming dad's daughter goes missing, he dusts off his old black-ops skills to track her down — only to attract the wrong kind of attention.

  ★ 5.0 from 8 members25 tracking it here
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  Taxi Driver (2021)Also action & adventure · drama

  A former special forces soldier delivers revenge for victims of injustice while working for a secret organization that fronts as a taxi company.

  14 tracking it here
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  Flex X Cop (2024)Also drama · action & adventure

  A chaebol cop joins forces with a gritty detective to take down criminals with a touch of wealth and a whole lot of wit.

  4 tracking it here
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  The Manipulated (2025)Also drama

  Taejoong's life is torn apart when he's framed for a heinous crime and imprisoned. Discovering it was all orchestrated by someone on the outside, he embarks on a rage-fueled quest for revenge.

  5 tracking it here
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  The Uncanny Counter (2020)Also drama · action & adventure

  A group of supernatural demon hunters known as "Counters," each with unique abilities, disguise themselves as employees of a noodle restaurant, while tracking down evil spirits that terrorize the mortal world.

  ★ 3.7 from 3 members11 tracking it here
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  Little Women (2022)Also drama · action & adventure

  Three sisters, who only have each other and never enough money, get entangled in a conspiracy involving the rich and powerful.

  3 tracking it here
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  Dating Class (2019)Also drama

  The story revolves around 6 university students who are new to dating and the lessons they learn along the way, and the web series is based on an actual university class titled 'An Introduction to Dating'.
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  My Bossy Wife (2022)Also drama

  Lu Xiaobai, a carefree young man, accidentally crosses paths with Shen Junye, a fierce female constable. Forced to marry into her family under a binding contract, they move from hostility to partnership, working together to catch criminals, solve mysteries, and discover love.
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  The Secret Romantic Guesthouse (2023)Also drama

  The series is about an incident that takes place when the owners of the boarding house called 'Guest Summer Palace', which breaks stereotypes, and boarders with secrets gather to find Lee Seol who disappeared 13 years ago.