Renko's intestines!And it's covered in some kind of white spots.This is is a photo of someone's stomach? It looks all chapped.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!