I found this picture on a Sailor Moon website. I was just amaized when I saw it so I had to ask you guys about it.
I have been emailed and now I know and I can tell you too.^_-.
They were the guardians of Endimion and Serenity and I guess Naoko thought to draw them together. If your questions is why did she pair them up like that, my answer is because of their similar personalities.If you could tell me some similarities I would apreciate it. Thanks!^.^
Note: Remember that Zoisite is a boy in the manga.
