Ichiki Mitsuhiro

With nothing left to lose, ordinary high school student Shinozaki Haruka confesses to beautiful, diligent class representative Kousaka Akiho and to his surprise she accepts. Kousaka takes dating as seriously as she does everything else, but does not quite get it. She pragmatically suggests activities that are too sexual. Source: ANN

Note: Bundled with the limited edition of the sixth manga volume.

60 years ago, a strange case of insomnia struck the population, forcing them to stay awake for more than a full week. The victims, completely sleep deprived, all went mad. To cure this illness, a new medicine was produced, but the side effects turned the patients into vampires. Humanity went to war against this new species and triumphed, but some of the vampires managed to…