Three hundred years ago, in the frigid land of Siberia, Jubei Yagyu engaged in a fierce battle with Kitaretsusai of the Northern Yagyu clan. The duel was costly, as his daughter Freesia was frozen in suspended animation. As a result of global warming in the present day, Freesia breaks free from her icy grave and moves to Japan as a middle school transfer student, where she befriends Jiyuu Nanohana. Little does Jiyuu know that Freesia is targeting her to acquire the coveted Lovely Eye Patch, which Freesia believes is rightfully hers.

Alternative version of final four episodes of High School DxD BorN.

A few years after they first met, Naomi Armitage and Ross Syllabus have started a family. Despite their normal lives, they must keep their identities a secret because many people believe that Robots do not deserve equal status with humans. Ross has an opportunity to abolish these ideas on Earth through a vote, but organizations in the shadows are working so that it doesn't happen.

A collaboration between Blue Exorcist and Kakko Kawaii Sengen.