High school student Chiyo Sakura has a crush on schoolmate Umetarō Nozaki. When she confesses her love to him, he mistakes her for a fan and gives her an autograph. When she says she wants to be with him, he invites her to his house and has her help on some drawings. Sakura discovers that Nozaki is actually a renowned shōjo manga artist working under the pen name Sakiko Yumeno. She agrees to be his assistant in order to get closer to him. As they work on his manga Let's Fall in Love (恋しよっ Koi Shiyo, Let's Have a Romance), they encounter other schoolmates who assist them and/or serve as inspirations for his stories.