My Brother and I Traveled Through Time Together, and My Enemies Also Traveled Through Time

[Travel][Sign-in System][Superpower][Single Female Protagonist] A black hole appears. In the world inside the black hole, there are various rare and rare beasts. They are collectively called phantom beasts. They originally thought they would launch a war with foreign races, but the lord of the phantom beasts only wants to coexist peacefully. The human race also agreed to the request, but for unknown reasons, the lord of the phantom beasts was changed. From then on, the first war between the phantom beasts and the humans started. Although the humans successfully repelled the phantom beasts in the first battle, the human race's nuclear missiles were unable to cause damage in the second battle. In each war, the human race was destroyed and the phantom beasts occupied it. But the last person of the human race activates his own phantom power to be reborn, and at the same time the Blue Star from the parallel world arrives through time, and this is also the key to the human race rewriting the ending.