At Tamayoshi Fine Art Research Lab - a prep school for students who want to apply for art schools - Haru, a student preparing to retake the entrance exam, was hit on by his roommate, Natsu. Natsu is a genius painter who is good at nothing but painting. While looking after Natsu, Haru helped him out of a difficult situation. Natsu's feelings for Haru became even stronger as a result. During exam prep time, Haru was under a lot of stress and turned Natsu's feelings down. Will Natsu's relentless and unchanging feelings reach Haru's heart no matter how many times Natsu gets rejected?