A year has passed since the battle at the Sanctuary, and Subaru has been spending fulfilling days united with Emilia's camp. However, his peaceful everyday life ends with the arrival of a single letter.

After the incident in the main square, Priestella has fallen into chaos and Emilia has been kidnapped. Now it's up to Subaru and the others to rescue Emilia and the city.

Subaru and his comrades find themselves in a dire situation after the city was taken over by the Sin Archbishops. Now, they are devising a plan to first reclaim the city hall...

The attack on the city hall enters its second phase. Subaru and Crusch breach the interior, but there they are awaited by Capella, who has some sneaky tricks up her sleeve...

Subaru and the others hold a meeting in the city hall to develop a strategy against the four Sin Archbishops. However, Emilia is slowly running out of time...