Bukaro
So this is like the 10th World Travel story that uses Kenichi world that I've read & it's in 2nd place atm & could easily become #1, right now the only reason the other is #1 was because it was a very detailed Training Arc of the series were as this story Kenichi's world is his Intro finding himself world.... Funny thing is both these top 2 are the only Kenichi worlds worth reading & both have Shigure as best girl of this world lol