Five timelines, one device, and no way to save them all. The show burns through its premise in 12 episodes like it's got half that time, cutting character moments short and rushing fights that deserve to breathe. What it gets right, the animation, the early groundwork for who these people are and why they're willing to destroy each other, lands hard enough that you feel the weight of every impossible choice, even as the pacing fumbles the landing.

In the near future, five Black Points suddenly open around the world, acting as portals to parallel worlds. Strange creatures pour through them almost at once. These invaders come from five worlds that are really one world at different points in time. Each invading force fights to wipe out the other time frames so that its own future survives, and the key to the struggle is a single device shaped like a card. The series mixes adventure, fantasy and science fiction.