Everything will be my way! EWBMW

A young man with an extraordinary mind is off on an exciting adventure when he mysteriously wakes up in the body of a feeble slave-guy in a different, rich in quirks world.
The main character, a selfish jerk, would use extreme means to achieve his goals. However, he never allows his base instincts to overrule his sense of decency. He always pays back both good and bad deeds.
Will his (terrible/excellent) mentality help him make a fresh start? Will he get through misfortunes and hardships of the new world?