ブラック★ロックシューター (OVA)

These young girls' hearts are pure, and then violent!<br><br> Mato Kuroi just got into junior high school, and on the first day, someone catches her eye; her classmate Yomi Takanashi. The two meet. The innocent and naive Mato. The mature Yomi. Seemingly opposites, but the time they spend together only strengthens a growing friendship. But as they go into their second year at the school, they get placed in separate classes, and they begin to grow apart.<br><br> But somewhere simultaneously... In another world, a young girl, blue fire residing in her eyes, Black Rock Shooter faces another young girl; this one holding a jet-black scythe, Dead Master, and a battle to the death begins to unfold.<br><br> (Source: The Official Black Rock Shooter Site)