[When Tieria leaves her side, Rei once again tries to stand up, but this time she coughs up a good amount of blood. That's why her breathing is so strained - the rib is pushing against her lung at the best, or has punctured it at the worst. She collapses again, feeling helpless and afraid, until she becomes aware that the fight seems to have stopped. Naoya is closest to her, so she reaches out a hand to him, her expression puzzled.]
Na... oya... san? [Thin, rattling breaths between each syllable.]