She's a girl in high school girl who wants a boyfriend. She meets a karate club guy and decided to prove to him that she is hardworking so he would introduce her to a popular boy from his school. There was an accident when she fell in water and he loaned her the shirt that he was wearing so people made fun of him going shirtless until they made it to his house. She met his sister and it turns out that he is practicing karate in order to protect his mother and sister. He decides to introduce her to a popular classmate from his school and it turns out their feelings were mutual.