Note: The manga was cancelled after being put on hiatus, with the author stating he had lost the motivation to continue it, with their failing health being the main concern.

Join ninja apprentice Eita Touga as he embarks on an epic adventure searching for his missing brother Kouki and save the Autana (Humanoid Beast) race of "Live-Earth" from the mysterious Gigas seeking to exterminate them.

(Source: MU)