My Strange Hero

In high school, Kang Bok Soo (Yoo Seung Ho) was expelled after being framed for bullying, which sent him into a downward spiral and ruined his reputation. Years later, he lives a decent life, but deep down he harbors a burning desire for revenge against those who wronged him. His chance for vindication arrives when he's offered an opportunity to return to Seolsong High School as a student, as he crosses paths with two of his former classmates. Bok Soo’s high school girlfriend Son Soo Jung (Jo Bo Ah), whose testimony played a key role in his expulsion, is now a teacher at the very same school, while Bok Soo’s former best friend Oh Se Ho (Kwak Dong Yeon) is now the chairman of the school board. Will Bok Soo successfully avenge his teenage self, or will he find a way to heal from his past another way?