How Heavy Are the Dumbbells You Lift? Specials Episode 2 Silverman Gym Intense Training Course, Part 2 ( Air Date 2019-12-25 ) Genre Animation, Comedy category. Overview "Hibiki Sakura’s love for food is starting to affect her size, but training at her local gym is pretty intimidating! After meeting her handsome personal trainer, Machio, Hibiki bites the bullet and starts her quest for a hot bod!".