After standing up to a school bully, Park Sae-ro-yi's life is shattered when he is expelled from school, loses his father in a tragic accident, and is sent to prison after seeking revenge against the man responsible. Refusing to abandon the values his father taught him, Sae-ro-yi emerges from prison with a single goal: build a successful business that can defeat the powerful Jangga Group, the food empire that destroyed his life.
Years later, Sae-ro-yi opens the small pub DanBam in Seoul's vibrant Itaewon district. Alongside an unconventional team of employees—including the brilliant and ambitious Jo Yi-seo—he works to transform his modest restaurant into a thriving franchise. As his business grows, he faces fierce competition, corporate corruption, personal rivalries, and difficult choices between revenge, love, and forgiveness.
Based on the hit webtoon of the same name, Itaewon Class.