The listing, Blue Seed: Perfect Collection has ended.
Momiji Fujimiya believes she's just an ordinary Japanese teenager--until she learns that she's actually the hereditary princess Kushinada and her blood is mankind's most powerful weapon against the shape-shifting monsters the Aragami. As the centuries-old war between humanity and the Aragami is heating up, Momiji goes to Tokyo to work with the government agency fighting the monsters. She's joined by the roguish Mamoru Kusanagi: as a child he was kidnapped by a powerful Aragami and given seven souls, or mitama (symbolized by the "Blue Seed" of the title). In battle Kusanagi transforms into a werewolfish version of himself with sword blades in his forearms.