As Hinata House enjoys their beachside stint, Motoko spars daily with Seta. Her sister notices a drop in her sword skills, prompting Motoko to prove herself by battling a local spirit. But the situation grows more eerie than expected…

Kaolla's boredom triggers her transformation disease, turning her into an uncontrollable adult version of herself. She turns Hinata House into a jungle! Naru seeks help from Kaolla's sister, Amalla, while Keitaro gets pulled into the madness.