Would This Qualify For Supernatural Willpower?

[Flashlight237]

So here's the deal. So, in one chapter of the manga, Debby is shown having quite a poker face despite her upper face looking like it just ate three full-course meals at Taco Bell, and she seems to maintain some of her cockiness for like half the chapter: https://shonenjumpplus.com/episode/14079602755232235436

The reason? Her butt's itchy (probably a rash or something; I can't read Japanese). Would this qualify for Supernatural Willpower (or at least Peak Human Willpower), or is it normal for people to, you know, do that?

 

[Suigetsuhyugs]

That seems pretty humanly possible.
The world record for Tacos is 126 in 8 minutes so is a face of eating 3 full course all that?
Unless her butt is actually burning that seems pretty average.