A man gets lost in an underground passage. He follows the "guide" through the passage, but one after another, strange things happen to him. Is this space real? Or an illusion? Will the man be able to escape the passage?
The story centers on Uki, an imperial concubine who has never been called to the emperor's bedchambers, and maintains a singularly unique life within the harem chambers. Seen by some as having the appearance of an old woman, and some others as a young lady, she is knowne to use mysterious magic that helps with everything from finding lost items to inflicting curses. When a circumstance makes the emperor call on her, their meeting will change history.
Nanakusa is a vampire. That's okay with human Ko. He wants to be one too. But transformation doesn't come that easily...
When Nazuna invites Ko to spend the night at her place in an abandoned building, he's stoked! But then he awakens to kisses on his neck with a little too much bite to them... Is it just the delicious taste of his blood that makes her meet him night after night for late-night adventures, conversation and...naps? Or something else? Then, when a cute girl from Yamori's past shows up and competes for his attention, his budding relationship with the undead is put to the test!