(Light yuri)
"It turns out everyone is the Moon Goddess in a picture book. Sometimes, we become fireflies, briefly passing through someone else's life."
Aibi falls for her club senior, Ailina, but Ailina is about to graduate, and the two will soon have to part. The drama club is putting on a fairy tale called "The Moon and the Firefly" at a nursing home. At Ailina's suggestion, Aibi plays opposite her.
Unable to accept their separation, Aibi runs away from Ailina after the performance. On the nursing home's roof, she meets an old person who was separated from their childhood sweetheart during a war many years ago...
