Blue Seed centers on the young Momiji Fujimiya and her quest to discover her heritage, from ancient legend to realizing her destiny as the Kushinada Princess. She joins the TAC in battling the Aragami, the monsters that are attacking Tokyo. Blue Seed is named for the blue seed-like form, or "mitama," imbedded in Momiji's chest, which is later exposed to be an unborn Aragami. When we meet Mamoru Kusanagi, he claims he is about to kill Momiji but soon becomes her protector in defiance of his Aragami masters. Kusanagi protects Momiji with the powers brought on by the seven "mitamas" he was given as a small child.
Events heat up with the arrival of Sakura Yamazaki, the brazen and confident American Shinto Princess. The addition of Sakura forces Momiji to confront her feelings for Kusanagi and end her acts of victimization and passivity. It's when Momiji is put in the position where she feels she needs to compete for Kusanagi's attention does she realize her bravery, and, consequentially, the true magical powers of her mitama come out. Once we find ourselves near the middle of the series, the menacing Murakomo comes along to add a tense and dynamic element to the mix. Kusanagi is Murakomo's main foe, and because Murakomo has more mitama than Kusanagi, Kusanagi must join forces with Momiji to avoid being crushed. These battles add great tension and action to the story and the addition of a human (or human-like) enemy is a welcome complexity to the up until now relatively mundane narrative.
Things become even more mysterious when Susana-O, a seemingly harmless baby who turns out to be the god of darkness, enters the picture. The infant is being cared for by Murakomo and Kaede, Momiji's deceased twin sister who has, unexpectedly and without explanation, come back to life. Complications arise when Momiji struggles with Kusanagi's apparent feelings for Kaede and her unforeseen jealousy that results when she learns about Kaede's perfections. Momiji's internal issues unfold during these story complications, and all the while the attacks of the Aragami plant monsters intensify and spread throughout the rest of Japan.
The series tackles a variety of dramatic themes and takes a number of sensational turns, from battling a league of demons to obsessive love and destiny. Because of the many episodes in the series, there is room for a good amount of character and story development as well as plot twists. The Aragami monsters taking myriad, animal forms keep their continual attacks interesting and feed our curiosity. The series does a fine job of balancing the many themes, from the ecological message of the Aragami monsters taking plant form to reclaim the Earth, to, that's right, girl power.
