Summary
Mirai Kimizuki is the younger sister of Shihou Kimizuki. Despite her young age, she was infected with the Apocalypse Virus and is currently undergoing treatment in a hospital. Shihou cared for her while they lived in the outside world among monsters. Although Mirai wished for him to kill her, he refused, and they eventually entered Shibuya. Shihou subsequently joined the Japanese Imperial Demon Army to secure the military resources required to cure her, as civilian hospitals are unable to treat the virus.
