The gang go to a remote island beach for a "vacation", where Mayu starts getting closer to Shungo as Reika tries to upstage her. After witnessing Shungo invite Mayu to watch the stars together, Reika wanders off in a depression. Shungo finds her, but she changes her personality to a more aggressive girl who is also a succubus. A mysterious group of soldiers capture the two as well as Mayu.