That Time I Got Reincarnated As a Slime: Movie - That Time I Got Reincarnated as a Slime: Movie

After he's saved and given a name by Queen of Raja, the ogre Hiiro pledges to repay her kindness. So when he learns that her kingdom's being poisoned, he sets off for help finding Rimuru, old friends, and even some of the orcs who massacred his people.