The official website of the Black Rock Shooter anime project has announced on Wednesday that the full 50-minute length of the anime will be streamed for free to "everyone," although it does not specify if the stream will be available outside Japan. The streaming is part of a promotional campaign that will run from June 25 to August 31. As the first part of the campaign, there will be a free DVD bonus extra for Hobby Japan magazine, which has a circulation of 160,000.

The website also announced that the main cast of the anime has been decided:

Mato Kuroi: Kana Hanazawa
Yomi Takanashi: Miyuki Sawashiro

However, more of the cast will be announced at a later date. The Nico Nico Douga video-streaming website will host the Black Rock Shooter production crew on its Toriaezu Namachū program's Okinawa Special Week. Good Smile representative Aki Takanori, illustrator huke, director Shinobu Yoshioka, Ordet studio head Yutaka Yamamoto, and others will appear at the program.