For a second, Achilles had no idea how to react appropriately. He was rather dumbfounded, but also relieved by Sia's sudden appearance. She had just saved him from huge trouble, after all.
He had many questions that needed her answer, but now wasn't the time for inquiries.
Straining his broken body, he tried his best to stand up but his current state was stopping him from doing so easily. He nearly stumbled and face-planted on the ground but Sia was quick to grab a hold of him.
She buried his face in her bosoms and asked lovingly and tenderly:
[Are you okay?]
Achilles lifted his head and looked directly into the white-haired elf's eyes, then answered in all honesty:
"I...am...now."
It wasn't every day that he got to enjoy a soft cushion in the middle of the battle. It was better to make the most of it.