Mr. Mikazuki's Notes on His Lady

Synopsis

"My Lady, you look so beautiful today... I'm so excited!" A quiet high school girl lives in a luxurious mansion, and her butler, Mikazuki, is obsessively in love with her. The stones the Lady steps on, the dust in her hair, the cream she leaves uneaten, the bathwater after she soaks... Mikazuki loves and wants to know everything about the Lady, and today he continues to shower his overprotective and perverted love on her. However, in fact, Mikazuki and the Lady harbor a secret that they have not revealed to each other... (Source: Kadokawa, translated)

Anime adaptations