While Se-Jun Im settles things with his fists, his best friend, Ha-Jin Seo, eats and breathes grappling. Together, they fend off bullies on their school campus, but everything changes after a fight that sets Se-Jun on a mission to hold those responsible accountable for their crimes. What began as a schoolroom brawl quickly turns into a fight for justice and truth as Se-Jun hits the streets looking for any leads as to what happened on that fateful day. (Source: Tapas) 
Note: Chapter count includes an epilogue.

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