Traveling merchant Kraft Lawrence and wolf deity Holo sit down to have dinner with Norah Arendt, a young shepherdess who helped them smuggle gold. Holo's dislike of Norah—due to both the latter's profession and her closeness with Lawrence—prevents her from enjoying her meal. When Holo falls ill from fatigue, she is cared for by Lawrence, who frets over the health of his dear companion. As she regains her strength, Holo reminisces about the adventures they had together.

With her late grandfather's inspiring words in mind, Chizuru Mizuhara teams up with her friend Kazuya Kinoshita to launch a crowdfunding campaign for an amateur film. The two hope that with the success of the project, Chizuru can honor her grandparents' wishes before she loses her grandmother as well. After their wild encounters with three girls—Kazuya's clingy trial girlfriend, Ruka Sarashina; their nosy new next-door neighbor, Mini Yaemori; and Chizuru's shy work friend, Sumi Sakurasawa—they all collaborate together to reach the campaign goal and begin production of the film. As their ambitious endeavor progresses, Chizuru and Kazuya grow closer and begin to struggle with their mutual feelings.

Rail Wars! takes place in an alternate universe where the Japanese government remains in control of the nation's railway systems. Because of the stability afforded by the leadership of the government, the railway system is allowed to flourish. Naoto Takayama aspires to become an employee for Japan National Railways because of the comfortable life that it will enable him to live. In order to accomplish this he enters its training program, where students must demonstrate their knowledge of trains as well as their ability to be ready for any challenge that might arise. During this time period he will encounter other students such as the athletically gifted Aoi Sakura, the constantly hungry Sho Iwaizumi, and the human encyclopedia Haruka Komi. Together they will work towards surviving their trainee period, all the while taking on purse snatchers, bomb threats, and the looming specter of the extremist “RJ” group who wants to privatize the railway system.

Vampires—supernatural beings that feed on the life essence of the unsuspecting at night—have been around for centuries. However, high schooler Karin Maaka is unusual, even among her own kind. Unlike her vampire family, ever since she was a child, Karin has suffered from polycythemia: a rare disorder which causes her to periodically produce excessive amounts of blood. And the more blood she produces, the more anemic and lightheaded she gets, ultimately leading to frequent nosebleeds. Her only solution? Force her excess blood onto random strangers, which surprisingly causes these victims to become livelier and happier than before. With her siblings—Anju, her reserved yet affectionate younger sister, and Ren, her womanizing elder brother—helping her abilities remain a secret by altering the affected humans' memories, no one is the wiser. That is, until Karin's newly transferred classmate, Kenta Usui, finds her behavior suspicious. And to make matters even more complicated, Karin feels her blood reacting unusually to Kenta's presence.