World's End Harem

As Reito begins to adapt to this new, man-less world, he finds clues that the virus had artificial origins.

A teenage boy wakes up in the future; he finds his new school is filled with nothing but women.

Shouta adapts to his new school life.

Reito goes to visit the widow of the very first victim of the MK Virus in Japan; the widow knows more than she should, and has secret communications with someone very important to him.

Reito finds clues leading to the origin of the MK virus; anyone who researches the origins of the virus go missing.