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…