A Genius' Isekai Overlord Legend - Fist of the North Star: Amiba Gaiden - Even If I Go to Another World, I Am a Genius!! Huh? Was I Mistaken...

The unprecedented "Fist of the North Star" spin-off!! "Fist of the North Star" x "Another World", a forbidden combination of different kinds! Amiba is the main character! He was defeated by Kenshiro and died... but then he woke up in another world for some reason!? Genius fighter Amiba's great adventure in another world begins now!