Reincarnated as a Homeless Man

An average university student is going about his day, wandering aimlessly towards his morning classes. Sitting down, in a bus, he falls asleep, only to wake up in a completely different place, laying on the side of a busy street.

In his head he hears the voice of the owner of his new body, and he must work with the owner to survive in this world full of belligerent kingdoms, mystical creatures and magic.