The Akihabara Raid begins and Akatsuki uses her new equipment provided by everyone in battle with Nelreth before fleeing with Marielle to another section of the city. Following Riese's plan, they lead Nelreth through the city where he encounters groups of two-member raiding teams strategically placed to nullify his special abilities. Meanwhile, Lenessia and Kinjou reach an agreement to disable the city's magic circle. At the same time, Akatsuki pushes herself to her limits which causes her to activate her very own Teaching skill: Shadow Lurk. This gives her a slight edge until Nelreth decommissions her katana. However Tatara Amenoma gives her a new specially reforged katana with the power to challenge Nelreth's Byakumaru. Akatsuki then manages to lure Nelreth to Riese's position, where Lenessia and Kinjou simultaneously disable the city's magic circle and leaves him vulnerable to Riese's ice attack which stops him from teleporting. Finally with the support of her comrades, Akatsuki destroys the Byakumaru, defeating Nelreth. In the aftermath, the Akihabara raiding party celebrates their victory and Shiroe calls Akatsuki to congratulate her while his raiding party prepares to once again face the boss which claimed their lives on Christmas Eve.
Elenco: Takuma Terashima , Tomoaki Maeno , Emiri Kato , Jouji Nakata , Daiki Yamashita , Nao Tamura , Eriko Matsui .