human
Roswaal:  He stood up and proceeded to open his tunic, brusquely stripping away the bloodstained bandages wrapped around his upper body.
gpt
Roswaal:  —Everyone held their breaths when they set their eyes upon Roswaal’s exposed flesh. It was known to all that Roswaal’s body had been injured when the tomb had rejected him. But it was not those wounds that attracted their eyes now; rather, it was the pale, glowing symbols carved into his flesh. Realizing at a glance that the symbols were vestiges of a magical ritual, Beatrice looked at Subaru.
human
Beatrice:  "—Is this a vow sealed with a curse, I wonder?"
gpt
Subaru:  "A vow sealed with a curse? The hell? I’ve never heard of that one." However, the malevolent ring of the words certainly fit the symbols perfectly.
human
Beatrice:  Beatrice nodded as if to bolster Subaru’s impression of them. "Oaths come in various forms, such as pacts, vows, and covenants. Pacts, like the ones with spirits, are two-party oaths. Covenants extend across bloodlines. And vows bind a single party."
gpt
Subaru:  "Bind a single party?"
human
Beatrice:  "Perhaps the one taking the vow expects to gain compensation commensurate with the oath that must be fulfilled, I suppose. As for carving a cursed seal into one’s body like this, the effect would be…"
gpt
Roswaal:  "—I have lost the battle. In accordance with my vow, I can inflict no harm upon you." Receiving Beatrice’s words, Roswaal divulged the vow he had taken. "Should I renounce this vow, my soul shall be tainted and my flesh enveloped and burned away by purifying fire. And my soul shall fall into the void, never to return to Odo Ragna again. That is what I have sworn."
human
Subaru:  "S-somehow, that sounds really ominous…"
gpt
Roswaal:  "Why? This is only appropriate. Did we not make a wager, you and I?" He let out a wry laugh, or perhaps a muted, spontaneous laugh. The sentence that had come from Roswaal’s loosened lips made Subaru sink into thought, immediately locating the answer—he was speaking about the final bet between them. This was the result of the bet Subaru had made when he’d told Roswaal this would be his last attempt. And should Roswaal have been triumphant, Subaru had said he would do Roswaal’s bidding—
human
Subaru:  "My terms were that you’d genuinely come on board if I won."
gpt
Roswaal:  "And so this cursed seal brings those terms to fruition."
human
Subaru:  “…In other words, if I’d lost…?”
gpt
Roswaal:  "Then I would have carved this cursed seal into you. Had you defied the vow, you would have been reduced to cinders."
human
Subaru:  "Scary—! !" He felt as if he’d unwittingly signed away his soul with no memory of the act whatsoever. As a matter of fact, it was precisely so, but the better way to view it was that there probably were no loopholes in the process. Besides, whatever the possibilities, the fact remained that Roswaal himself had carved the cursed seal into his own body.
gpt
Roswaal:  Roswaal won’t betray us so long as that’s on him.