That Time I Got Reincarnated as a Slime, Vol. 1 (light novel) (Volume 1) (That Time I Got Reincarnated as a Slime (light novel), 1)

Living alone and never having had a girlfriend, 37-year-old Satoru Mikami is dissatisfied with how his life has turned out. But after dying at the hands of a robber, he awakens to a fresh start in a new world...as a slime monster.