The Man-Killer Virus: a lethal disease that has eradicated 99.9% of the world's male population. Mizuhara Reito has been in cryogenic sleep for the past five years, leaving behind Tachibana Erisa, the girl of his dreams. When Reito awakens from the deep freeze, he emerges into a sex-crazed new world where he himself is the planet's most precious resource. Reito and four other male studs are given lives of luxury and one simple mission: repopulate the world by impregnating as many women as possible! All Reito wants, however, is to find his beloved Erisa who went missing three years ago. Can Reito resist temptation and find his one true love?

The Man-Killer Virus: a lethal disease that has eradicated 99.9% of the world's male population. Mizuhara Reito has been in cryogenic sleep for the past five years, leaving behind Tachibana Erisa, the girl of his dreams. When Reito awakens from the deep freeze, he emerges into a sex-crazed new world where he himself is the planet's most precious resource. Reito and four other male studs are given lives of luxury and one simple mission: repopulate the world by impregnating as many women as possible! All Reito wants, however, is to find his beloved Erisa who went missing three years ago. Can Reito resist temptation and find his one true love?

Traumatized by a childhood incident with a friend who took exception to his love of traditional dolls, doll-artisan hopeful Wakana Gojou passes his days as a loner, finding solace in the home ec room at his high school. To Wakana, people like beautiful Marin Kitagawa, a trendy girl who's always surrounded by a throng of friends, is practically an alien from another world. But when cheerful Marin—never one to be shy—spots Wakana sewing away one day after school, she barges in with the aim of roping her quiet classmate into her secret hobby: cosplay! Will Wakana's wounded heart be able to handle the invasion from this sexy alien?!

Nora Handa is a boy who lives with Shachi Yuuri, who was adopted by his mother. With everyone supporting, the two of them grew up healthily even after their parents passed away. Shachi, who likes Nora the most, wakes him up every morning. Nora spends his happy student life with Michi Kuroki, who is a disciplinary committee, honor student at school and childhood friend of the main character, Yuuki Asuhara, who is a gal but is very bright and can talk his worries to, and more friends at school. One day, Nora meets a girl who calls herself Patricia at the park on the way to the school. Patricia is a queen at hell, and claims to come here to destroy the life on land. However, she is damaged heavily because she touched the life for the first time. The energy was stronger than her, so Nora needed to tend her. Patricia asked him to tell her about the mysteries of life, and he had to even explain the ero book that he found at the park...?!