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.
Have you done something 
you need to apologize for?
هل فعلت ما يدعو للأسف؟
Hast du etwas getan,
dass du es müsstest?
Hai fatto qualcosa per cui devi scusarti?
Fez algo de que precisa
se desculpar agora?
Ты что-то сделал, раз просишь прощения?