That Time I Got Reincarnated as a Slime (2018)

S1E2 Meeting the Goblins

Mikami, the slime, and Veldora, the Storm Dragon, decide to name each other. Veldora chooses the name "Rimuru" for Mikami, who then suggests the family name "Tempest" for them both. Using his Predator ability, Rimuru absorbs Veldora to examine the "Unlimited Imprisonment" seal in an attempt to free him. However, this act sends ripples of concern throughout the nations near the Great Forest of Jura. With Veldora's absence, the larger nations might feel emboldened to target the smaller territories. Unaware of the brewing tensions, Rimuru exits the cave and encounters a group of Goblins.