Kaya Satozuka prides herself on being an excellent secretary and a consummate professional, so she doesn't even bat an eye when she's reassigned to the office of her company's difficult director, Kyohei Tohma. He's as prickly - and hot - as rumors paint him, but Kaya is unfazed...until she discovers that he's a vampire!!

Kyohei has left the family firm to start his own business, and Kaya is at his side as his indispensible secretary...but only at night. By day she's still the executive secretary for Erde, a subsidiary of the company Kyohei just quit. The increased workload isn't a problem, but when the president of Erde discovers that Kaya is seeing an ex-Tohma Corp. executive, he starts to question her professional ethics! Will being vampire's secretary put an end to her career?!