Prologue

Somewhere in an unknown isolated island, inside an unknown building.
“Activate the emergency protocol.” The general shouted among the crowd, hoping the news reached the lab at the certain level of the institution before going back to control the situation. One guard directly made a call towards the lab and it's soon picked up by a female.
“Miss Iriyama, we gotta go.” One of the guards told the scientist who was picking up the phone as the news on what’s going on the upper level had been heard.
“Wait a moment.” The girl named Anna said, as she rushed to the project she was doing and pushed the button of the keypad that was located on the glass panel of a huge glass chamber, pressing the password before the ‘enter’ button. The glass chamber opened up and freed the woman inside of it.
“Get out fast. They’ll reach here soon.” The guard shouted in panic to the scientist who was waiting for her project to wake up.
“My priority is you. If she isn’t going to wake up, we should leave.” The guard gave Anna a warning.
When Anna was going to turn around, the woman who was her project, opened her eyes and got out of the chamber.
“It’s been a while…” The woman said, rather cheerfully.
“Talk later, for now we gotta go.” Anna cut off the words that the female going to say and dragged the female out as they made a run towards the emergency purpose elevator with guards following behind them, stalling the incoming.

In another level of the building
“Let’s go Rena.” 
“You’re not going to activate her?” The girl named Rena said, looking at the female inside of the glass chamber with the look that no one could comprehend.
“Better be fast, guys.” The guard told the two females as they were shooting towards the incoming.
“We got no time, Rena.” The female pulled Rena’s arm but Rena didn’t budge as she was still looking at the female inside of the glass chamber.
“Please, Oshima.” Rena shook her head as if she had just said the wrong words. “No. Please, Yuko. I don’t want her to die here.”
“But…” Yuko herself also wasn’t quite sure she wanted to leave the female there.
The guards soon pulled the two female out of the laboratory, taking them to safety before they could do anything.

Somewhere in Tokyo
“Mayu, stay at home and lock the door. Make no sound. I’ll be there soon.” The lady over the phone said.
“Okay. Be here fast.” Mayu answered as she went to lock her door, closing the windows and turned off the TV and also other things that can make any sound.
“I promise, I will. Until then, don’t go anywhere.”