Shuumatsu no Harem

Medical student Reito Mizuhara develops a rare disease and enters cryogenic sleep until treatment becomes possible. When he wakes years later, the world has been transformed by the MK Virus, which killed most of the male population. Reito is one of only a handful who survived because they were frozen, and the authorities now expect him to help rebuild humanity. He has little interest in the privileges this new world offers; he wants to find his childhood friend Elisa Tachibana, who disappeared years earlier. As he searches, details surrounding the virus and the organization managing society become increasingly suspicious, and Elisa's disappearance may not be separate from the catastrophe. In a world that treats his existence as a rare resource, Reito tries to keep the right to choose his own life and love.