Near the end of the Showa era in the late 1980s, in Misaki town, an old mansion is rumored to be the home of a witch. After moving into the mansion, Aoko Aozaki begins to learn sorcery from a young mage, Alice Kuonji, the rumored witch of the mansion. The Aozaki family oversees the land on which Misaki is built and the heir (Aoko) is tasked with protecting it.<br>
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Mysterious intruders have been disrupting the bounded field in Misaki, leading Alice and Aoko to investigate. A mannequin or puppet attacks them and is incinerated. As this happens, both of them spot someone running away, a civilian who must not get away having seen magic alive.<br>
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Unexpectedly, a young boy named Soujuurou Shizuki is drawn to the mansion and comes to reside with them as well.

Witch on the Holy Night