Setsugetsuka

The mysterious thief who only appears on nights of the full moon, Gekkou. When he is done he always visits one girl, and professes his love to her. And so the two of them have continued to have these secret rendezvous. However, one night, something is different...

Aside from "Setsugetsuka", this collection also includes "Utsukushii Mono" (Beautiful Things), "Dousei Yokka" (One Roof, Four Days), "Warau Zanzou Sunny" (The Laughing Afterimage, Sunny), and "Koi Otoko" (Man in Love).

(Source: Intercross)