My crush is health teacher Min Yoongi

During high school, Yeo-ju meets a new teacher, Min Yoon-gi, thanks to her friend Jimin's footsteps. But the health teacher is Yeo-ju's ideal type, whom she's never met before!? This is the story of the end of the love triangle between Yeo-ju, Yoon-gi, and Jimin, and the romance between student and teacher.