Amane's mother, Shihoko, arrives at the apartment without warning while Mahiru is visiting. Amane asks Mahiru to hide, but Shihoko eventually finds her, and the two neighbors frantically try to correct Shihoko's assumption that they are dating. Nonetheless, Mahiru is touched by Shihoko's motherly kindness. After Amane sees how happy Mahiru is to be called by her first name, he tries calling her "Mahiru" too. From that day on, the neighbors call each other by their first names.
Then it might be best if I
 were to supervise things.
إذاً قد يكون من الأفضل أن أشرف على الأمور
Dann wäre es besser, wenn ich dabei wäre
und ein Auge darauf hätte.
Entonces sería mejor que te supervisara.
Entonces sería mejor que te supervisara.
Il vaut mieux que je sois là
pour superviser.
Allora suppongo sia molto meglio 
che venga a tenerti d'occhio.
Portanto, seria melhor
deixar essa parte comigo.
Значит, мне стоит тебя проконтролировать.