This is is a photo of someone's stomach? It looks all chapped.

And it's covered in some kind of white spots.

Yeah, they took that with an endoscope camera. They're stress-induced stomach ulcers...

Eh!? Th-then, this picture...

This is Renko's stomach!

Renko's intestines...

In the next life, I want to be a helicobacter pylori... H. pylori is a bacterium that causes stomach ulcers.

... and live inside Renko's stomach!