On one rainy day, an Adapter attacks the passengers on a tram. Luckily, Aoto, another Adapter who was at the scene, stops him with his ability. Akane and Midori are ordered by the Academy to recruit Aoto, but they hear a disturbing rumor about him.

Arthur finally decides to go find the Divine Gate. He asks the members of the Knights of Rounds as well as the select few from the Academy to join him on this expedition. However, Loki and Oz set out on their own mission as well in response.