Shuumatsu no Harem

Reito Mizuhara, a young researcher, finds himself facing a tough battle after being diagnosed with multiple sclerosis. With no time to waste, he decides to pour out his heart to his childhood sweetheart, Erisa Tachibana, before entering cryosleep, hoping to wake up when a cure is discovered. Just as he drifts off, Erisa rushes in, promising to wait for him. Fast forward five years, and Reito awakens to a drastically changed world. A deadly virus known as the "Man-Killer Virus" has wiped out nearly all men, leaving only a few survivors, including Reito, who gained immunity thanks to his treatment. Now, he and the other surviving men are seen as precious resources, expected to help repopulate the Earth by fathering children with women. Despite the pressure and the allure of other women around him, Reito's heart remains set on finding Erisa. He’s determined to stay true to his feelings and not get sidetracked by the chaos surrounding him. Will he be able to navigate this new reality and reunite with the love of his life?