"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."
but when you see the answers, 
you realize it's the wrong subject.
لكن عندما ترى الأجوبة، تُدرِك أنّ المادّة مختلِفة
Und jetzt fühlt sich’s an,
als hätte ich das Schulfach verwechselt.
y cuando ves las preguntas,
descubres que es otra materia.
y cuando ves las preguntas,
descubres que es otra materia.
et que je m’étais planté
de matière pour le contrôle.
e poi, guardando le risposte, 
rendersi conto che hai sbagliato la materia.
mas depois de ver as respostas,
 percebi que errei a matéria.
а потом взглянул на вопросы и понял,
что готовился не к тому предмету.