[Machine Translation] Otona don't understand, Kodomo don't want to understand. A sad but tender coming-of-age story from the first feature directorial debut of renowned actor Kim Yoon-suk. --A high school girl, Juri ( Kim Hye-jung ), discovers that her father is having an affair. She learns that it is Mi-hee, the mother of her classmate Yoon-ha ( Park Se-jin ), who is known as a problem child. Juri advises Yoon-ha to stop her mother's infidelity, but after a heated argument, Yoon-ha tells Juri that her mother is pregnant with Juri's father's child, and even reveals this fact to Juri's mother. Joon-ri is confused by this unexpected admission and hurt by her parents' attempts to turn away from reality. Yoon-ah, on the other hand, feels deeply alone as she watches her mother's adulterous infatuation without regard for her daughter. Then, an incident occurs that shakes both families to the core...