My boyfriend is Kyungsoo????

In high school, Kyung-soo meets Yeo-ju. Yeo-ju is targeted by her sophomore sister. She feels sorry for Yeo-ju, who is struggling. So, she helps her. Yeo-ju is popular with everyone, including her studies. Kyung-soo was popular with the girls. But when they hear that he is helping Yeo-ju, the girls make it even harder for her. Kyung-soo confesses to Yeo-ju. Yeo-ju is afraid of the popularity and refuses at first. Then, she has an idea: Kyung-soo likes her and wants to help her. So, they start da