21st century teenager is summoned into another world to save world from the demon King's reign . His journey unfolds facing countless treats and challenges ,uniting nation and continent forming a team of capable individual who help him along the way. It takes him 27 years to reach the demon king After a long battle he slays the demon king to be killed by his comrades. Now reincarnation in a different and unknown world in a noble family, he wants to live a rich and selfish but doesn't know what fate his reincarnation has yet to unfold . His inner self gradually surfaces forming a goal he chases after.