Book of the Gods

Also known as "A 26-year-old unemployed vagrant traveled through time and was the bottom of the pile, so he had to learn how to monopolize a different world!" Why is it that others are sword masters, genius mages, and top craftsmen, but my talent is to become a super slave? ! Damn, hate, hate, hate, hate, hate, hate! ! ! ! ! Want to exploit me? Watch me practice this skill backwards and squeeze the whole world!