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 hate seeing the person 
I spend all my time with get sick.
أكره رؤية الشّخص الّذي أقضي
طوال وقتي معه مريضاً
Ich kann nicht mitansehen, wie es der, mit der
ich so viel Zeit verbringe, schlecht geht.
Odio ver enferma a la persona
con la que paso todo el tiempo.
Odio ver enferma a la persona
con la que paso todo el tiempo.
C’est nul, quand la personne
avec qui on traîne ne va pas bien.
Non mi piace veder star male
 una persona così vicina a me.
Eu odeio isso. Ver a pessoa com que
está sempre comigo ficar doente.
Мне не нравится, что моя
всегдашняя собеседница больна.