A Certain Biochemical Genesis

The strongest in Academy City, a being who reached the realm of the gods as a mere mortal, Lv. 6 - the Creator King - had an accident during a "curbstomp" battle. He and Shindo Hima, from Kirigaoka Girls' Academy, who had been watching from the sidelines, transmigrated to another world that had nearly been completely consumed by a biovirus...