The Nohara family and "Onsen G-Men", the secret government agency maintaining all the hot springs in Japan, fight against "Yuzame", a bath-hating terrorist organization plotting to wipe out all the hot springs in Japan. (Source: Manabu Tsuribe)

Two OVA episodes bundled with the 16th volume of the manga. One of the included episodes is based on the story from the 15th volume, while the other contain an all-new original story. (Source: ANN)

The war that raged between the Church and the Witches for five centuries finally ended in peace but a few short years ago. However, nestled in the shadowy places of the world, the embers of that age old conflict still smolder. Attending the Royal Academy of Magic of the Kingdom of Wenias is a struggling student named Sable, who has no memories of his time before being enrolled. At the command of Headmaster Albus, he left the Kingdom to travel to the southern reaches of the continent, where anti-magic insurgents are still a force to be reckoned with, as part of a special training regimen. Accompanying him are a party of individuals strong in both ability and personality; there's the one known as the Witch of the Dawn, Roux Cristasse, who seeks the forbidden knowledge of primeval magic in the 'Grimoire of Zero,' the genius girl Holtz, as well as the school's sole beast, Kudd. Just what truth shall they uncover in their journey to the south...?

While playing in the snow one day at her shrine, the land god Nanami Momozono witnesses her familiar—the fox youkai Tomoe—collapse, with dark markings appearing on his body. Tomoe's former master, Lord Mikage, appears after his long absence and places Tomoe into a magical pocket mirror in order to stave off his ailment. Mikage explains that long ago, before he and Tomoe had met, the fox youkai was in love with a human woman. Seeking to live as a human with his beloved, he made a deal with a fallen god, but he only ended up cursed and dying. When Mikage discovered Tomoe, the god made the youkai forget his human love as a quick solution. However, something has changed recently to reactivate the curse; Tomoe has fallen in love with his new human master, Nanami. Since there is no way to stop the curse, Nanami wants to stop Tomoe from getting cursed in the first place by traveling back through time, even if it means they may never meet. As Nanami travels back hundreds of years to save her precious familiar, she discovers that she is far more closely bonded to Tomoe than she previously thought. [Written by MAL Rewrite]