I just wanted to protect her. That feeling wasn't a lie. Where did I go wrong?" Rejected by the one who meant more to him than anything, Subaru is still unable to recognize that he may have done something irreversible. He then finds out that some disturbing movement has been detected within Roswaal's domain, where Emilia and the others are. He's certain that he can save them somehow, so in spite of Rem and Crusch's opposition, Subaru makes his way back to Emilia... Upon returning to Roswaal's mansion, Subaru is greeted by an unbelievable sight and wails that this was not what he wanted to happen. Stricken with despair, everything before Subaru starts to go white as, finally, he hears a voice: "You were too late."
I get why you're going back to the mansion, 
but can anyone there heal him?
أعلمُ سبب عودتك إلى القصر، لكن هل
يستطيع أحدٌ هناك مُعالجته؟
ihr kehrt zwar auf eure Residenz zurück,
aber könnt ihr dort irgendwas tun?
Entiendo por qué regresas a la mansión,
pero ¿alguien podrá sanarlo?
Entiendo por qué vuelves a la mansión,
pero ¿alguien podrá sanarlo?
tu dois avoir une idée pour le soigner,
si tu rentres ?
Capisco perché vuoi tornare alla tenuta, 
ma c'è qualcuno lì che possa guarirlo?
Eu sei o motivo para você estar voltando à mansão,
 mas há alguém lá capaz de cuidar dele?
Я понимаю решение вернуться в особняк,
но кто его вылечит?