Special episode delivered to customers who pre-order all six Blu-ray and DVD volumes of Dog Days''.

Akira Yuki has spent years honing his Bajiquan skills under the guidance of his grandfather. He yearns to see the constellation of the eight stars of heaven, which are only revealed to those with real strength. This burning desire urges him to embark on travels, so as to learn more about how to see the stars. Meanwhile, a nefarious robotics scientist, Eva Durix, desires to create the perfect soldier. Eva's group, Judgment 6, tracks down and kidnaps Sarah Bryant, a college student and close acquaintance of Akira who is investigating a mysterious accident concerning her brother. Akira must now fight his way to Sarah to save her from the clutches of Judgement 6, a perilous path sure to be paved with countless challenges.

An independent animated short-film by Hiroyasu Ishida, the animator of Fumiko no Kokuhaku. In a small, forgotten town where the rain never stops, a chance encounter between a robot and an inquisitive little girl brings back memories and a chance reunion with a girl the girl the robot has never forgotten.

Valkyrie, Kazuto, Akina, Hydra, and friends are back for more when the Key of time suddenly appears along with many other mysterious happenings. All seemed to be linked to a person named "Valkyrie Ghost" whose only goal is stealing Kazuto for herself. As they team up against this seeming unbeatable foe they dig deeper into the mysterious past of Valkyrie's home planet, Valhalla. (Source: ANN)