Sailor Moon S Episode 120
"Invasion from outer space! Mugen High's Secret"

Rini ran through the halls of Hotaru's house. All the rooms were empty. Rini turned around to see Setsuna. "What have you done with Hotaru!" demanded Rini.
"I'm sorry Small Lady," replied Setsuna, "Everyone was gone when I got here."
"You're lying!" accused Rini, "Hotaru wouldn't leave without telling me. You're reponsible. You said terrible things to Hotaru. Pu...I hate you!"
Setsuna gave Rini a comforting hug. Rini cried in her arms.
The girls were at Darien's house discussing the situation. Darien used his computer to search for information on the missing professor Tomoe. He found something in an index of professionals. "Soichi Tomoe," read Darien, "a prestigous genetic engineer. He teaches at Mugen High." "Mugen?" said Raye, "That's Haruka and Michiru's school."
"Hotaru's too," added Mina. "It's supposed to be an elite school where only talented people can get in."
"It's a skyscraper school," said Amy, "With all grades from elementary to university in one building."

 

Darien looked up from the computer. "Soichi Tomoe isn't just a professor, but also the owner of Mugen." The girls agreed that they should check it out.
Just then, Setsuna came in with Rini. Rini was soaked from the rain and Serena started fussing that she would catch cold. Darien noticed the look on Rini's face and asked Serena to let her be. Darien thanked Setsuna for taking care of Rini. Setsuna turned to leave. "Please wait," said Darien. There was a note of insistence in his voice.
Setsuna shared some information. "Mugen High was established three years ago by Soichi Tomoe. Strange things happen there. So Uranus and Neptune entered as students."
"As spies," said Luna.
"Exactly," continued Setsuna, "Tomoe is probably related to the Deathbusters"
"Hotaru too?" asked Lita.
"We don't know," answered Setsuna, "We know Hotaru Tomoe is Sailor Saturn."
"Hotaru isn't our enemy," said Rini. "Hotaru is very gentle. She's a good girl! Please don't kill her!"

"Setsuna," said Serena, "even though Saturn is the Soldier of Destruction, she's still a Sailor Soldier. There must be another way."

"This is why we don't want you involved in our mission," said Setsuna.

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