Satsuki Kiryuin had huddled in her bed. Not from the death of her father or the revelation he told her, though she wished that were the case.

Her personal butler, Soroi, looked on, but he knew that going against her assailant would only end up with him killed or fired. Still, Soroi knew he had to do something before Satsuki would go down a dark road. Perhaps there was something the late Soichirou could do.

"Lady Satsuki." Soroi presented the weeping girl with a suitcase. "This was something your father worked on before he went away. It's the only project he created without the knowledge of your...of Lady Ragyo."

Satsuki pulled the suitcase and opened it up. Inside was a strange device that probably fitted like a belt and three items that looked like USB sticks. Satsuki looked up at Soroi, and without any more words, Soroi gave her the last hug Satsuki would gladly receive. She then put on the belt, and everything changed.

"Well, the Astronomy Club just got a No-Star into their club, one with a ridiculous pompadour hairdo. Nothing else to report."

Satsuki nodded after Nonon gave her report. Honnouji Academy was her greatest project, with her on top and her Elite Four to support her. She was glad that she recruited them. Not only were they loyal despite their different backgrounds, but she could share most of her secrets with her.

Including the one that just materialized around her waist.

"Looks like the meeting's over."

Satsuki inserted a Gaia Memory into the right side of her belt, flipped it, and flopped back into her chair. The next thing she knew, she leapt away from a giant golden crab. Right now, "Satsuki" was wearing a bodysuit that was half green, half black. Behind red lenses, she looked at the towers around her. "What are you doing all the way in Osaka, Ryuko?"

"I'm trying to find dad's killer." The suit's other side said.

"Professor Matoi's dead?" Satsuki paused, though they both jumped away as the crab slammed its claw into the ground. "No wonder this body felt off. You're angry."

"No shit, Sherlock." Ryuko admitted, blocking another claw with her arm. "I figured this was the best place to find information, but I pissed off some kid with gold teeth and he turned into this."

"Gold teeth..." Satsuki thought, delivering a kick that set the crab on its back. "It doesn't ring a bell."

Finally, Ryuko and Satsuki had decided to combine their power and deliver a kick so strong that it reverted the monster back into a boy with glasses. Ryuko sighed. "Damn, it shouldn't take this long to take down a Dopant, but I can't just focus with Dad gone..."

"...I understand. I can't ask you to cope with it like I did." Satsuki looked in a certain direction. "Honnouji Academy is that way. Houka Inumuta is my Head of Information and an unparalleled hacker. He should be able to track him down."

"I see. Well, I guess that rules you out as the killer, Satsuki." As the suit faded away and Satsuki returned to her body, a girl with black hair and a red bang look on. "Honnouji Academy, huh? I guess that's my next stop."

((So, Satsuki and Ryuko as Kamen Rider Double, with a possible Fourze cameo.))