Based on the conversation on the show, the two of them have a sleepover at Chika's fancy house. Yumiko's happy to see Chika enjoy the dinner she cooked. Then for some reason, they end up taking a bath together. How did it come to this?!
Voice actresses take baths together sometimes.
.تأخذ مؤدّيات الأصوات الحمّام معًا أحيانًا
Synchronsprecherinnen gehen
doch oft gemeinsam baden.
Las actrices de voz
suelen bañarse juntas.
Las actrices de doblaje
se bañan juntas de vez en cuando.
Les doubleuses
prennent souvent des bains ensemble.
Le doppiatrici fanno il bagno insieme, no?
Às vezes, as dubladoras
tomam banho juntas.
Женщины-сэйю часто 
моются вместе, ты же знаешь.