After using forbidden magic in the fight against the devil, Secré turns into a bird and ends up spending centuries all alone. During that time, she ends up meeting Asta, who ends up with Licht’s grimoire that has a different devil residing in it. Patry ends up reviving due to resurrection magic, and then he becomes the leader of the Eye of the Midnight Sun and vows to get revenge. This was all according to the devil’s plan and Secré uses her sealing magic to free Lumiere and Licht so they can finish off the devil once and for all along with Asta. The battle comes to an end, and Secré now begins her new life as a member of the Black Bulls.
I'm gonna make everyone happier! 
So we can have nicer things!
!سأجعل الجميع أكثر سعادة
!لكي نحظى بأشياء أفضل
Ich mache euch alle noch glücklicher!
Los haré felices y vivirán entre lujos.
Os haré felices y viviréis entre lujos.
Vous serez plus heureux
et vous vivrez comme des rois !
Renderò tutti ancora più felici! 
E avremo tutto ciò che vogliamo!
Eu vou fazer todo mundo mais feliz.
Para que possamos ter coisas melhores.
Подарю счастье!
Искупаю в роскоши!