Things get even more confusing for poor Momiji when a man named Mamoru Kusanagi arrives, but when she learns that he is there to protect her from these strange monsters (Aragami), she feels safer. Little does she know Kusanagi hasn't decided to save her or sacrifice her.

Meanwhile, the TAC rush to the scene with an experimental creation that may defeat the terrible Aragami.

To the dismay of the TAC, Kaede Kunikida suddenly disappears. Meanwhile, the young school child Momiji Fujiyama is attacked by a strange man, hellbent on killing her. But why is he doing this?

After surviving the attack, Momiji's school is filled with monsters, but the strangest thing of all is that people think she's some sort of princess.

TAC Member Yoshiki Yaegashi feels that the others seem to help out a lot more and that he is not needed, and when kind-hearted Momiji tries to help out, she discovers something about him that she could've lived without knowing.

After trying to help Yaegashi restore his confidence, the two set out to track town an Aragami.

After the powerful Kaede envelopes an abandoned city in a dome of energy, Kusanagi wonders in and finds himself trapped, causing Momiji to come in after him. But when Kusanagi is overtaken by his daydreams, Momiji is helpless to save him.

The prime minister grudgingly decides to sacrifice Momiji in order to save Japan from the growing Arigami infestation. Momiji, still grieving over the loss of Kusanagi, accepts her fate and goes with the government to be sacrificed.

The TAC isn't quite ready to give up on her just yet. Takeuchi and Kome go to rescue Momiji. Momiji refuses to go at first, saying that this is her destiny. But Takeuchi slaps some sense into her (literally) and reminds her of what they are fighting for.

The three TAC manage to escape thanks to some unexpected help from Sakura and her pink sea creatures. As they are leaving, Momiji's mitama begins to glow. She can sense Kusanagi!

The giant Arigami buds are blooming, causing mitamas to fall to earth. The mitamas cause all whom they touch to turn to plants...

Momiji screams in pain as the Kushinada pulse is turned on her. Kaede hears her screams, but says that it is ""too late."" She melds herself into Susano-oh's mitama in order to protect him from Murakumo, who is still attacking.

Murakumo suffers a few blows from Kusanagi before burying one of his heads into Susano-oh. Murakumo laughs, announcing that he has won, as he begins to drain Susano-oh's energy. Kaede only shakes her head and calls him a fool. Murakumo continues to feed off of Susano-oh's power until his mitama grow to be huge. Then suddenly, his mitama shatter. As Murakumo is left writhing in pain, Susano-oh finishes him with an energy bolt.

The children of Japan can hear the Kushinada's pulse, Momiji's song, and are starting to sing along with it.

Momiji has almost completed the matsuri. The members of the TAC note that they all feel warm and happy