The rivalry between the girls at school heats up as they all strive to be the one to mate with Shouta.

As Shouta becomes accustomed to life as the only boy at school, he starts to seek out more and darker thrills. And his keepers are more than happy to oblige his every need...

As a messenger from UW's global headquarters arrives in Japan, Reito finds the secret behind the creation of the MK virus.