Amazon-kun

(from ebookjapan):
This is a memorable early gag work by the heretical genius George Akiyama, depicting the mischievous exploits of a cannibalistic child named Amazon-kun. Amazon-kun, who had fallen asleep on a small boat, arrives in Japan and bites the buttocks of a passing boy named Chinpei. At that moment, Chinpei farts and runs away, but Amazon-kun chases after him and beats him up all over the place, eventually tying him to a pole and roasting him whole.....!?

Note: Was uncollected until its 2010 SeirinKogeisha release, in which it is combined with Akiyama's later work Dobugero-sama.