Anastasia, a young girl who loves books, is summoned as a slave to the Palace of a Thousand Nights, a harem of a thousand women. However, her scribe brother plots to hide the fact that she is a woman, and she ends up replacing him as scribe.

Kuzuha Minase, a female college student, was born with a psychic constitution. She hears that there is an amazing psychic at the café "Gyokuto" near her university, and goes there to find Tomonari Takakura, who is said to be a reincarnation of Seimei Abe, and Hozumi Hino, the master of the café. As they were entranced by the delicious café latte they were served, the spirits that had been following them were quickly driven away. Convinced that they are real Onmyoji, Kuzuha immediately consults with them about the earth-bound spirit calling her name that she encountered at the university. Kuzuha's consultation with Tomonari leads to more mysterious things...