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.
I don't know why you need 
to be so hard on yourself,
،لا أعلم لمَ عليكِ أن تكوني قاسية مع نفسكِ
Ich verstehe nicht,
warum du dich so kleinredest …
No sé por qué te juzgas así,
No sé por qué te juzgas así,
J’ignore pourquoi tu te rabaisses,
Non devi essere sempre
così critica di te stessa.
Não sei por que precisa
exigir tanto de si,
Ты о себе слишком плохого мнения.