Set in the year 2040, the story begins with , a young researcher who enters cryosleep to await a cure for his rare "Cellular Sclerosis" disease. Upon waking five years later, he discovers that 99.9% of the world's male population has been wiped out by the Male Killer (MK) Virus .

– Reito explores the new society and begins to suspect the UW organization has hidden agendas.

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"World End Harem" (also known as "Shūmatsu no Harem") is a Japanese manga series by Hirotaka Akagi and illustrated by Miki Aihara. If your zip file contains related content:

The first half of the season introduces a world where 99.9% of the male population has been wiped out by the "Man-Killer" Virus.