When struggling high school student Shimura Kota finds himself at the very bottom of the social ladder, life seems stacked against him. Living in poverty while caring for his seriously ill mother, Kota endures constant bullying and humiliation from classmates without fighting back.
Everything changes when an unexpected altercation with a fellow student is accidentally broadcast online. The intense and surprisingly entertaining fight quickly goes viral, turning Kota into an overnight internet sensation. Realizing that his newfound popularity could be a way to earn money, Kota teams up with a classmate who teaches him how to survive and win fights.
Together, they launch a live-streaming channel called Self-Taught Fighting, where Kota takes on increasingly dangerous opponents while broadcasting every battle to a growing audience. As his channel gains fame, he must navigate the challenges of online stardom, school life, and the harsh realities of fighting for survival.
Based on the popular webtoon Viral Hit, this action-comedy drama follows an underdog's journey from powerless victim to viral fighter as he challenges both bullies and society's injustices one fight at a time.