Doctor stuffed them and two other girls into tubes. Serena banged on the glass. She stoped when the tubes began to rise. She looked at Yuzu, and she looked back. Serena looked at the other girls, one with short green hair and one with long purple hair, but both with her face. 

Four girls, four dimensions, Serena thought, What does it all mean? 

Soon, all four tubes lifted up, into Professor's office. Serena saw that Yusho and three other people were standing on the other end of the office. One had grey hair and purple eyes, the other had a blue hoodie. And the last one... 

He had goggles on and a pendulum, and Yuri's face. 

"Yuya-" Yuzu started, but was cut off by Serena. 

"Yuri, good, you have your mind back!" Serena cried in joy, only to have it be destroyed when she saw someone else come slowly walking in with Doctor. 

"There's two Yuri's?" Serena whispered. She looked at Yuzu helplessly, and Yuzu looked back.

"Yuri!" Yusho cried in surprise. The other three looked over as well. Yuri still looked blank, like nothing at all was happening in his mind. He stared at the four people just before him. 

"Professor!" Doctor cried, "If we have the power to control Yuri, won't we have the power to control his counterparts?" 

Professor looked at him. 

What counterparts...? Serena thought. Did Yuri have others that had the same face as him? Like the boy with goggles? 

Everything seemed to be happening so fast, and Serena's head was spinning. Who were these "counterparts" of Yuri's? We're there four of them, just like her and the other girls with her face? 

"Father!" The man with grey hair said. 

"Reiji." Professor replied. 

"How do you plan to reunite the dimensions?" Reiji asked. 

"With this!" Suddenly, the wall behind the four girls began to glow green. It was moving away, revealing a large machine. Cards with people's faces fell from above the machine, going right to the center. 

"What's that?" The girl with the blue hoodie asked, grabbing Yusho's leg in fear. 

Professor seemed to yell, "This is REVIVAL ZERO!"  

~to be continued in book two~