A Hat in SpaceTime

Mu felt a small chill in her spine. As if the world just froze and she was barely staying alive. T-This girl... s-she was dangerous. She quickly pushed back her hand and stepped backward. Mu had to get out of here and find some help. Fast!

"M-Mou? C-Come on, I'm your friend right? You can trust me. I just... need you to calm down for a bit." Puella stepped forward. Making Mu step back, even more, her back almost touching the wall.

After living as a stray orphan for years along with that past with Hattie, Mu could sense danger before it occurred. And this, was incredibly dangerous.

S-She had to warn Hattie and Bow. She had to get out of here! SHE HAD TO RUN-

*SMASH*

Mu side-kicked Puella, the girl before her flying across and hitting the side wall as she started running. Peck, Peck, PECK! Mu ran past the entrance and into the street. This was bad!

However, before she could even locate her house-

*BOOM*

The entire area shook with great force. Making Mu trip and fall to the ground. And before Mu could even stand up, the bright blue sunny sky quickly darkened to relight with a shallow red tone. As soon as the red light shone upon the entire dome, Mu could sense everyone around her looking toward the sky along with a loud siren that seemed to block any other sound.

"*WARNING! STRUCTURAL INTEGRITY DAMAGE DETECTED IN SECTOR 3B. ALL PERSONNEL, PLEASE EVACUATE THE AREA IMMEDIATELY*"

Mu turned her head to look back. Only to immediately regret that decision. Behind her was Hattie, or no, not Hat- Puella... With purplish-black wings coming out of her back and floating above the ground. N-No! S-She had to r-run! 

Suddenly, tens of red laser pointers appeared on the floating girl as Mu stepped back. Tens of kids and teens wearing full-on colored metal mech-like armor were pointing what appeared to be futuristic guns toward the girl when one of the older teens stepped forward.

"IDENTIFY YOURSELF AT ONCE! YOU ARE IN VIOLATION OF THE 'TIMELESS LAW' AND WILL BE HELD A FAIR TRIAL IF YOU SURRENDER PEACEFULLY!" the tall boy shouted as he directly talked to the floating girl.

"*PFFFFFF* Oh please. As if you would just shoot m- *GHA*" the girl, Puella gasped for air as she was shot in the throat by the previous shouting teen, falling to the ground. Mu's eyes widened in shock. W-What the PECK!? T-They would just s-shoot a child j-just because she d-didn't surrender!?

One of the younger kids wearing mech armor walked toward Mu. He glanced at the ID card and murmured something to himself as he spoke.

"Alien Mu. Please come with me, we will be needing your word in co-"

*BOOM*

With a sonic explosion, the body of the fallen girl rose back up unnaturally as her throat slowly healed back. White goo dripping to the floor from the open wound.

"*BLAH* Peck that hurt! What the hell is wrong with you guys!? Shooting an innocent child!?"

Mu took a step back. How was she standing!? Scratch that- How was she even alive!? The commander(?) also seemed a bit shocked.

"Oh? Did you think that would be enough? Really? I'm disappointed, really." The girl shook her head slowly and in the next moment, a bright orange-yellow light appeared next to the floating girl.