After a massacre, Tokiyuki flees with loyal retainers including Suwa Yorishige, who predicts Tokiyuki will rule Japan. Their priority is escaping enemy territory.

The story centers on Keitarou Gentouga, who has the ability to be a spirit medium. In junior high school, he got someone else wrapped up in a spirit possession incident, and he has been a shut-in for more than two years. As he reintroduces himself to society as a private tutor, he meets a genius girl named Yayoi Houzuki. Yayoi is instantly able to tell that Keitarou has skill as a spirit medium, and she invites him to go with her to a haunted location. The two then start their journey capturing evil spirits.

Kazuhiro Kitase’s only hobby? Sleeping, of course. Since childhood, his dreams have been a portal to exhilarating adventures with an elf girl. During one of their explorations through ancient ruins, they both get scorched by a dragon, and Kazuhiro wakes up like usual. Except this time, he finds a familiar figure in bed beside him—the elf girl from his dreams.

Thirty years ago, aliens attacked Earth and nearly brought humanity to extinction. Since then, mankind has clawed for survival, fighting the invaders for land, and the UN established EXCEEDS, an agency to stave off alien threats. On a remote island in a world of chaos, young hunter Shiina yearns for a quiet life with her sister, Setsuna, but a single incident draws her into the larger battle.

Seven years after humanity was devastated by a major disaster, a beacon of science and prosperity rises in Kamitsubaki City. But lurking in its shadows are Tesseractor monsters born from human darkness. Only the Witchling, five girls with Song of Purification, stand against them. With every note, they fight, not just to protect the peace of the city, but to heal a broken world.