Filament is an omnibus volume that includes short stories previously published as Bio Luminescence with two new ones. The one-shot "Kusahibari" was ommitted in this release. This entry includes only two never collected before into books one-shots: 1. Misaki de Bus wo Orita Hito (She Got Off the Bus At the Peninsula) 2. Meikyuu Neko (Labyrinth Cat)

The series has been published in Spanish by Milky Way Ediciones as Filamentos on March 24, 2016.