"After being badly wounded by Elsa, Subaru somehow survived and awoke in the mansion of Margrave Mathers, in the Kingdom of Lugunica.

Subaru now lives and works in Roswaal's mansion, working with Ram and Rem, and finally getting Emilia to agree to a date with him. But the day of their promised date never comes as Subaru keeps going back to the day he first awoke in the mansion. He's confused at the thought that he Returned by Death despite having no memory of experiencing anything deadly, but he's determined to repeat his previous actions up to the point of fulfilling his promise with Emilia."
I'm staying awake to greet 
the morning of my promise.
سأبقى يقِظاً لأرحّب بصباحِ وعدي
Jetzt nur mehr auf den
Morgen des Versprechens warten.
Trasnocharé para recibir
el día de mi promesa.
Trasnocharé para recibir
el día de mi promesa.
J’accueillerai le matin
de notre promesse.
Rimarrò ad aspettare il giorno
della promessa.
Eu vou ficar acordado para receber
 a manhã da minha promessa.
пока не дождусь желанного утра!