"Tch."

Quintessential Kaiba Reaction.

At the very least, that encourages Kaiba to try and scoot further away from Yuugi. Not that he didn't assume he should be thanking Yuugi for taking care of him while he was ill, but...

Well, he's Seto Kaiba. He's not going to say thank you, especially not to his shirtless rival.

I'm sure I'll have the opportunity to repay the favor.

See? That's not really thank you.