The Invasion of a Certain Scientific Electromagnetic Gun

Threats no longer come from within. A more powerful threat has invaded from the outside and established an inextricable and ulterior relationship with the inside. Those with abilities become experimental subjects, and friendship and love are constantly destroyed by experiments. Mistakes and accidents, sacrifices and rebirths... What is gone will never come back, and what is new will still disappear. (Part of the inspiration comes from the Three-Body Problem. Some contents of the original work may not appear or conflict with each other. Please forgive me.) Supplementary searches: A certain scientific railgun, A Certain Magical Index, Toko's scientific railgun, Misaka Mikoto