Siren turns a potter (Rei's cousin) into a phage after he destroys all his work. Usagi and the girls go camping and run into the Three Lights (they're filming in the area). They hear news of the ""Camp Ravager"" in the area. Seiya decides to scare the girls with the monster costume from their movie, but Usagi and Rei run into the phage instead. After transforming, Mars realizes it's her cousin and Usagi heals him.