Big Order - Season 1

10 years ago, the world was suddenly brought to ruin by The Great Destruction, and ever since then Orders, people capable of wielding super powers, have appeared. Hoshimiya Eiji is one such Order, and the very cause of The Great Destruction!

After Eiji dominated Kurenai Rin, a new Order appears, and they're both taken captive along with Sena! While Rin repeatedly fails to kill Eiji during their escape, Eiji sets out to rescue his sister--and a new group of Orders appears!

The operation to capture Yamaguchi is a go! Rin and Eiji are kept in the dark about the operation, but Iyo arrives to help and lead them toward the target VIP. But the Rock God breaks through their lines and draws near...

The operation to capture Yamaguchi heats up as Hoshimiya Eiji learns it's all a ploy to turn him into a moving target for tactical nuke strikes. As the nuke draws closer, Eiji is forced to fight against all the hatred turned towards him as he struggles to save Yamaguchi from the nuke all by himself.

After stopping the nuclear missile, Hoshimiya Eiji has a moment to rest, but then Franc awakens his sister Sena! While the others gather information on the Order who can help cure Sena, Eiji and Rin head out to claim Hiroshima as his domain, but while they're enjoying themselves a mysterious new force appears! What's happening to Rin?!

Hoshimiya Eiji heads to Izumo along with Iyo, searching for the Order who can cure Sena, Kamimusubi. After playing with her and the gods of Izumo, they finally win her over, but they're forced to work together when PS6 agents attack!

Shirabyoushi Kuroko, their chance at saving Sena's life is murdered. While Eiji is at a loss for options, Hiiragi orders him to withdraw to Dazaifu. When Eiji refuses to accept it, Hiiragi corners him. But then DAISY appears, connecting a line to Rin.

After witnessing Kamimusubi die in front of him, Hiiragi calls for Hoshimiya Eiji to withdraw. Ayahito lets slip that Gennai is trying to cause another Great Destruction, and Hiiragi begins to share the events of ten years ago. Shortly thereafter, Gennai's forces attack in order to kidnap Sena.

UNIGM Public Safety Division Vice Director Hoshimiya Gennai enters his facility in Heijoukyou, Nara to finally open the Gate to the other world. Hiiragi Yoshitsune and Dazaifu's Group of Ten surround the facility and commence their attack in order to put a stop to Gennai's scheme. Meanwhile, Hoshimiya Eiji has trouble hiding his hesitations toward Iyo's feelings for him.

Hoshimiya Eiji is forced the truth - The Great Destruction was caused by his sister, Sena, and to protect her, he stole her powers and rewrote her memories. With Sena helping him, Gennai begins to open the Gate. The Group of Ten rushes to the scene to face him in the final showdown, but can they stop him in time to prevent another Great Destruction? With Sena's life and happiness at sake, what choice will Eiji make?!