Usagi Tsukino/Sailor Moon was fighting her twin sister Guest who had suddenly turned evil without no explanation and was trying to reach out to her.

"Guest listen to me..!"

Eventually Sailor Moon transformed into Princess Serenity and to try and stop Guest, Guest and Usagi were both the princesses of the Moon with Usagi being Sailor Moon and Guest formerly being Sailor Moonlight and now Sailor Moon kept moving towards Guest.

"Guest please I don't want to fight you please sister..!"