The near future where mankind lives on the moon...

A girl who loves robot animation, Yamamoto Tsukihi, of which "Lunar Demon Gradulus" is her favorite, one day hears that the real thing exists on the moon. With her passion for Gradulus second to none, Tsukihi struggles in search of missing parts!

The girls' SF adventure comedy begins!

(Source: Shueisha, MU, edited)