How Heavy Are the Dumbbells You Lift?Dumbbell Nan Kilo Moteru?
TV · Summer 2019
Sports · Ecchi
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.