Being sick since childhood, Moe has spent most of her life at home, without school or friends. After being given just six months to live, she decides to spend her final days differently—by attending high school.

On the very first day, she boldly confesses her feelings to her classmate Hinata. The two start dating and experience their first love.

Then, on Moe’s birthday, they plan to watch the “Strawberry Moon” together – a full moon said to bind lovers forever. But after that night, she disappears without a word…

The days and months have passed by peacefully. Kazunari Hira (Riku Hagiwara) enters his senior year at college, and Sou Kiyoi (Yusei Yagi) does his best every day as a new actor. The two live together at Hira's house and are officially a couple. However, Hira's almost religious love for Kiyoi has yet to change. Hira has declared a new kind of devotion to Kiyoi and is at his beck and call, thinking endlessly about his beautiful, arrogant King Kiyoi. Meanwhile, Hira now has a new hobby—he is a Kiyoi groupie, which he keeps as a secret from Kiyoi by wearing a disguise. Hira watches Kiyoi alone, in secret, to avoid bothering Kiyoi. However, this hobby causes him to make a friend.
College graduation is also approaching. As Hira's classmates work on finding jobs, Hira—who has never had a part-time job—is troubled.
Hira's student life ends, and he is thrust into the working world. What path will Hira and Kiyoi take?