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.

Bishop Regulus of the Seven Deadly Sins wants to force Emilia to marry him, even though he already has hundreds of wives. While he is having the wedding hall prepared, Subaru and the others are planning to rescue Emilia and reclaim the city...

Liliana gives the performance of her lifetime to help Priscilla defeat the Sin Archbishop of Wrath.

Emilia seeks the aid of Regulus's wives in dethroning the little king once and for all.

Capella uses Al's admiration for Priscilla against him, and Garfiel fights the legendary "Eight-Arms" Kurgan.

Wilhelm finds himself face to face with his beloved wife who died years ago.

While battling Lye Batenkaitos, Otto discovers the secret to the Sin Archbishop's power.