Mushoku Tensei: Jobless Reincarnation (Light Novel) Vol. 1 by Rifujin na Magonote

Death is only the beginning in this epic and influential fantasy light novel series that spawned a manga adaptation (and a manga spin-off: Mushoku Tensei: Roxy Gets Serious), all available from Seven Seas. And don’t miss the new anime! 

Kicked out by his family and wandering the streets, an unemployed 34-year-old shut-in thinks he’s hit rock-bottom—just as he’s hit and killed by a speeding truck! Awakening to find himself reborn as an infant in a world of swords and sorcery, but with the memories of his first life intact, Rudeus Greyrat is determined not to repeat his past mistakes. He’s going to make the most of this reincarnation as he sets off on the adventure of a second lifetime!