The tension only really leaves her body when Ochako hears Gokudera's voice, really, most of the rest of the world drowned out by a very harsh buzzing in her ears. She looks a little flushed, having been really concentrating to make sure everything went smoothly, and there's a light sheen of sweat on her brow - that damn collar was really fighting against her grip - but after a moment to process that she did it, that she actually was able to save someone with her own power, she seems just wobble a little on her feet. The anxiety crash is being held back considerably, but she still looks like she ran a marathon either way. But, there's a smile spreading on her face.

"I--we...did it." Holy cow. It's done. It's all over. Nothing bad happened. "Heh...eheheh!! W-We...we di-did it! Thank you, Kimishima-sensei!"

She dips into a deep bow, then hiccups a little bit, hiding how frayed her nerves still are behind an enormous grin, then scoots over to where Gokudera is to make sure he's really doing okay, and that there were no effects of the collar not being on his throat or something. Hell only knows.

"Are you feeling okay?"