Episode of Appearance: 047 - Moon Revived! The Mysterious Aliens Appear
Location: Azabu Juuban, Tokyo, Japan
Juuban Odyssey is an apartment complex located in Tokyo where the aliens Ail and An resided during the first arc of Sailor Moon R. When they first arrived inside of an amorphous blob which crashed into the Earth, they located an empty apartment in this complex and made their home there. They also created an extradimensional space inside the apartment where the Makaiju was housed.