satozuka kaya

Age: 22 The main character of the story, Kaya begins her role as a private secretary to the Director at the start of the manga. She dresses conservatively at work, emphasizing her professionalism, though this is largely due to her insecurity about her youthful appearance. Because of her plain looks, she is initially turned down by the Director for the job but proves to be an indispensable employee and wins his recognition. Despite learning that the Director is a vampire, Kaya remains devoted to him and does everything she can to safeguard his health and secret. Over time, she starts harboring feelings for the Director, leading to a conflict between her duties and personal emotions. Her blood is exceptionally rare, capable of satisfying the Director's thirst with just one drop. She eventually enters into a sexual relationship with the Director and resigns from her official position as his secretary to work for a subsidiary company. Later, she becomes the Director's "midnight secretary," handling office tasks at night in his mansion. (Source: Wikipedia)