Prologue

5 years ago,a virus was discovered,it wasn't much of a big deal when it was first discovered,because of that the virus grew expedentially,only the women were immune to this virus.

5 years have past since it was discovered,almost all the men were wiped out by this virus,Almost.only one man survived this virus,his name is eiji Sato,he had the immunity to this virus,he is the only man alive,most men would be overjoyed to be in this situation,but eiji isn't

Eiji was the laughing stock of his whole school,he was deemed the emotionless freak,for keeping a poker face for a whole day.he was immune because he already had a disease,that needed him to have a cryotherapy,he had just woken up from his slumber.

Do you think he has what it takes to carry the burden of regrowing human civilization,or he would let it die?