From the introduction:
Our pet project for the last year, Darkness and Starlight introduces three completely original races, The Gaian, The Lunar and The Solar and revisits Bleach for a race we forgot to add in the Core book, the Awakened Zanpakutou Spirit. It also adds over 100 new feats for the taking and a bunch of new Prestige Paths for you to grab. Also, we have epic content for you, including a bunch of epic feats including a new release type for Zanpakutou, and new forms for Arrancar.
Bleach D20 Classless Suppliment [sic]: Darkness and Starlight is a fan-created game product that uses intellectual property and images in a copyright-infringing manner.