Everyday Life without Rachnera

Monster Musume: Everyday Life With Monster Girls OVA · Episode 2 · “Everyday Life without Rachnera”

Bundled with the 11th and 12th volumes of the manga. The OVA adapts the manga's chapter 17 from the fourth volume, where Miia, Cerea, Mero, and Kurusu go to the gym's pool.