Power Potion / RK Gene Fluid (S01E10)

Vivi approaches Reiji with a request for a potion to enhance her strength, but he advises her against relying on such remedies. Instead, they enlist the help of Captain Annabelle from the Red Cat Brigade for some training. Noela and Mina also participate, but unexpectedly, Reiji finds himself pulled into the training as well, facing a grueling routine of jogging and strength exercises. Overwhelmed and fatigued, he vows to concoct a muscle-growth potion out of sheer desperation.