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?!
And you're letting me stay over.
.فأنا سأبيت هنا قبل كلّ شيء
Immerhin darf ich hier übernachten.
Y me has dejado venir aquí.
Já que vou dormir aqui.
Раз уж я у вас ночую.