Director Kim Jee Woon follows The Good, The Bad,
...A mother & son turn into taekwondo rivals in Be My Guest director Park Soo Youngs family comedy Im Doing Fine in Middle School. Three years after the acclaimed drama Two Mothers, Jang Seo Hee plays a mother again for her rare silver-screen comeback. Former taekwondo champion Bo Mi has a 15-year-old son called Han Cheol (Yoon Chan Young, Mama), who has been dreaming of becoming a guitarist. Han Cheol asks for an incredibly expensive electronic guitar but Bo Mi adamantly refuses & even holds a taekwondo contest to make him give up the guitar.