In 2175, the Alliance space formation discovered the appearance of mysterious white rings while exploring the Milky Way. In the following years, its occurrence became more frequent, cutting off the connection between the Milky Way and other galaxies. It seemed to pose a potential threat to the development of human civilization.
Officially named this unknown aperture "Border"
And classmate Xu Zhinian, who seemed very far away from the incident, became uneasy after hearing the news. Unexpectedly, he was actually involved...
Concept: Wonderful adventure