That Time I Got Reincarnated as a Slime (2018)

Lonely thirty-seven-year-old Mikami Satoru is stuck in a dead-end job, unhappy with his mundane life, but after dying at the hands of a robber, he awakens to a fresh start in a fantasy realm...as a slime monster. As he acclimates to his goopy new existence, his exploits with the other monsters set off a chain of events that will change his new world forever.