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.
Like you find the entire room 
cleaned without your knowledge.
كأن تجد الغرفة بأكملها نظيفة دون علمك
Wenn du aus allen Wolken fällst,
weil sie auf einmal blitzeblank ist.
Como encontrártelo todo limpio
sin tu consentimiento.
Como encontrártelo todo limpio
sin tu consentimiento.
Que je passe
un grand coup de balai à ton insu !
Potresti ritrovarti all'improvviso 
con la casa pulita e ordinata.
Tipo, ficar surpreso porque de repente
sua sala está toda limpa.
Внезапно она окажется вымыта до блеска!