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?!
See? She even left her script behind.
.أرأيت؟ حتّى أنّها نسيت نصّها
Hä?
¿Lo ves? Olvidó su libreto.
Vê? Ela até deixou seu roteiro para trás.
Что?