Michiru and Haruka Search for the Death Busters Headquarters

Michiru and Haruka sneak into the security room at the Mugen Academy to search for the hidden entrance of the Death Busters headquarters. They are startled when the door opens and Setsuna steps in to inform them that the girls are also investigating Mugen Academy.
Key Cel
Matching Background
Sailor Moon S Episode #120
Invasion from outer space! Mugen High's secret
Ijigen kara no Shinryaku! Mugen Gakuen no Nazo