When Itsuki and Chitose visit Amane's apartment for a Christmas party only to discover that the angel Mahiru lives next door, they instantly become very curious about the relationship. Chitose, obsessed with cuteness, insists on becoming friends with Mahiru. The day after Christmas, Amane notices that Mahiru has a fever. Despite Mahiru's stubbornness, Amane convinces her to stay and rest in his room. When Mahiru sees Amane so diligently taking care of her as if returning the favor she did for him that one memorable day, it seems to put her at ease.
If you don't like that, 
you can sleep in my room.
إن لم يكن يعجبكِ ذلك، يمكنكِ النّوم في غرفتي
Wenn es dir nicht passt,
schläfst du in meinem Zimmer.
Si no te parece bien,
puedes dormir en la mía…
Si no te parece bien,
puedes dormir en la mía…
Dans ce cas,
tu vas dormir dans la mienne.
Se la cosa non ti sta bene,
puoi anche dormire da me.
Se você não quer, então terá
que dormir no meu quarto...
Тогда тебе придётся спать в моей...