He also worked on the opening sequence for Zombieland Saga, and became the assistant director for Banana Fish.[4] In 2020, he directed The God of High School, a South Korean webcomic adaptation.[5] Later that year, he directed Jujutsu Kaisen, which won anime of the year at the 5th Crunchyroll Anime Awards.[6] Park himself was also nominated for Best Director at the same awards.[7] In December 2021, Park directed the film prequel, Jujutsu Kaisen 0. Park wanted to make each character's facial expression carefully to give them a proper look when fighting. He considers the new protagonist, Yuta Okkotsu, as a straightforward teenager. He aimed to show Okkotsu's loneliness caused by Rika's Curse. Megumi Ogata surprised Park in the making of the movie for giving Yuta a sensitive characterization when crying.[8] Park added elements of Chinese movies to the feature which he wanted fans to look forward to. He also praised Seko's script for the movie which is meant to show Okkotsu's transformation into a hero. While the television series was noted for having entertaining fight scenes, MAPPA aimed to make the film cooler.[9] In 2022, the second cour of Jujutsu Kaisen was nominated for anime of the year. Park was also once again nominated for best director.[10]