People sell their souls to avoid this prison. I sacrificed mine to go.

My name is Koyama Miho. Anyone in the galaxy would sell their soul not to be locked up in the deadliest supernatural prison in Nisiea. But not me. I deliberately committed a crime to be imprisoned there. The powerful mages, aliens, and monsters hidden behind those metal bars must die. The life of one does not outweigh the lives of many. If I fail this mission, my planet and my people will be annihilated. The goddess Qiaris has gifted me with the power to destroy worlds and cursed me with the burden of responsibility. She also created my one true soul mate, but I don't believe our paths were meant to cross now. I think she miscalculated.