His heart was filled with all sorts of regret. The two "Immortals" he had charmed hadn't even spoken a few words before they started to devour food voraciously... mainly because he was too thin-skinned. Every time the waiter asked if they wanted more, his pride got the better of him, and he couldn't bring himself to say no.
Just like that, he had inadvertently spent over a hundred thousand Immortal Crystals on a single meal...
However, it wasn't the Immortals' fault. Before they started eating, they had already made it clear they could eat a lot. He was the one who confidently said they could eat as much as they liked.
Most importantly, if he blamed them now, wouldn't those hundred thousand Immortal Crystals have been wasted for nothing?