PuRplE
High School of the Dead first then go to Soul Land. this is for the simple reason you want to change the fate of soul land he would need to really see the darkness of man that could be found in a might makes right world and what better place to see the grand filth then an zombie apocalypse (it would also give him needed leadership in regards to ruling people since right now he is just running a company not running a country even if it is a company with high influence in the world he is not making the laws just helping change what is already there)