Mahou Shoujo Tokushusen Asuka

Humanity encounters a long-forgotten realm of legends and magic after scientific progress had pushed it into obscurity. This encounter brings no joy, as creatures from the afterlife invade, rendering contemporary weapons ineffective and threatening human survival. Through the Otherworld Trade Agreement, a potential solution emerges in the form of magical girls, who play a key role in securing a human victory. Yet, this triumph marks only the start of a new conflict.