She and Ethan were indeed winning the battle, but their allies betrayed them.
Caught off guard by the relentless attacks, they had no time to retreat.
In truth, they could have easily wiped out their enemies with their Tier 8 abilities.
However, their cores were nearly depleted after fighting aliens nonstop for weeks without rest.
In the end, they succumbed—tragically defeated by both the alien forces and their treacherous allies.
It wasn't that she vanished; it was her ability—[Rewind Time]—that failed her.
She was supposed to send her consciousness back a week before the tragic event.
But the moment she saw Ethan lying lifeless on the ground, her emotions spiraled out of control.
Due to a series of events, she was transported to the future—500 years after the battle took place.
Because of that, she has no knowledge of what happened after she vanished.