I know it's pretty late to point out but I am sure there are some wrong translations on the mushroom part by the last 2 pages.
I think he was collecting mushrooms at the start (japanese word: kinoko) but somehow it became 'bamboo' at the last 2 pages. I am not sure but maybe it was misread as 'takenoko' (bamboo shoot) and so translated simply as bamboo.
You'll be angry too if your whole race is deliberately named Underwear race.
Oh look, it's an Underwear Man! or Hey, it's the Diaper Dude! < makes me want to punch the person who says this to my face.