The person who called Ryuto to the gym at night was actually Maria. She confesses her desperation to become Ryuto's first, even if that means dressing and acting like Runa. Ryuto is shocked. As the two talk it out, someone else watches from the shadows.
I wonder why. 
Maybe because it was a first for me.
.أتساءل لماذا. ربما لأنها كانت أول مرة بالنسبة لي
Keine Ahnung. Vielleicht,
weil es das erste Mal gewesen ist.
No lo sé.
Tal vez porque nunca me había pasado.
No lo sé.
Tal vez porque nunca me había pasado.
Je me demande pourquoi.
Vorrei saperlo. 
Forse perché non mi era mai successo prima.
Também não sei. Talvez por ter sido
a primeira vez que alguém foi assim comigo.
Хороший вопрос… Видимо потому,
 что со мной так не обращались.
ทำไมกันนะ