Monster Musume no Iru Nichijou Temporada 1 Episódio 4

A strange object appears in the pot and eats Miia! The culprit is an amorphous slime. Centorea weilds her blade against the attacking slime to protect Kimihito, but both of them end up covered in slime. They take a bath to wash the slime off, where they sink the slime on a wild rampage is search of water into the tub...! Papi names the slime Suu, and she begins living with them.