Sota has had a crush on his friend Aoi since high school. Sota was a member of the track team and showed great promise for the future, but gave up his dream due to a breakdown and became a salaryman.

Meanwhile, Aoi, who used to be in the art club, is building a successful career as a picture book artist, but at the same time, he is being played around with by his unfaithful lover of the same sex.

While Sota is feeling frustrated by his own inadequacy, Aoi loses his memory in an accident. Sota takes Aoi home, pretending that he is his lover.

The life together that he had dreamed of was sweet and happy. However, Aoi's ex-boyfriend shows up and..⁉