The infamous series of unexplainable murders in Hinamizawa have been solved and the chains of fate have broken due to the efforts of Rika Furude and her friends. Rika believes she has finally obtained the normal and peaceful life she desired with her friends; however, she is proven wrong when the wheels of fate begin turning once again after an unfortunate accident. Rika suddenly finds herself in a perfect world, the constant cycle of brutal killings having never taken place, where all of her friends are content and satisfied. Not wanting to abandon the world that she fought so hard for, she learns she must destroy an essential key to get back. But can Rika abandon the faultless world she is given the chance to live in, after all of her battles have brought her this far?

It happened suddenly: The dead began to rise and Japan was thrown into total chaos. As these monsters begin terrorizing a high school, Takashi Kimuro is forced to kill his best friend when he gets bitten and joins the ranks of the walking dead. Vowing to protect Rei Miyamoto, the girlfriend of the man he just executed, they narrowly escape their death trap of a school, only to be greeted with a society that has already fallen. Soon, Takashi and Rei band together with other students on a journey to find their family members and uncover what caused this overwhelming pandemic. Joining them is Saeko Busujima, the beautiful president of the Kendo Club; Kouta Hirano, an otaku with a fetish for firearms; Saya Takagi, the daughter of an influential politician; and Shizuka Marikawa, their hot school nurse. But will the combined strength of these individuals be enough to conquer this undead apocalypse?

Gods and ghosts only exist in fairy tales, right? That's the impression that high school girl Tamki Kasuga has before she goes to live with her grandmother in the remote village of Kifumura. After being attacked by strange creatures upon her arrival, she is soon informed that females in her family contain the blood of the Tamayori Princess, who has the responsibility and power of keeping gods and ghosts sealed away so that they can't harm the general public. At first Tamaki has trouble believing this, but having five beautiful young men following her everywhere she goes acting as her guardians goes a long way towards convincing her. There's more to this job than Tamaki first realizes, however, and the path that lies ahead of her is fraught with peril and danger. Will she be able to successfully take on the heavy role that has been put on her shoulders?

Two bonus episodes that take place during the course of the series, approximately halfway through it seems. They are entitled 'Everything you always wanted to know about Nereids (but were afraid to ask)' and 'Heaven can wait for Maia Mizuki'. These stories are more lighthearted and comedic in tone, bordering on silly.