These young girls' hearts start to turn violent despite their initial purity! On her first day of junior high, Mato Kuroi becomes drawn to her classmate Yomi Takanashi. Despite their varying personalities, the inexperienced and guileless Mato and the sophisticated Yomi rapidly forge a close friendship. Unfortunately, their separation into separate classes during the second year puts a strain on their relationship. Simultaneously, in another realm, the savage Black Rock Shooter and her adversary Dead Master confront each other in a fatal battle. The former's eyes blaze with a bright blue intensity as they clash.