Summary from MyAnimeList.net
Haruru Shirosaki, a girl whose father is a director, is always busy. Her best friend is Mami. She visits a girl's school across the road from a boy's school.
One day she sees a boy in the window of the boy's school. When she comes home from school the boy she had seen earlier is there saying he will become her butler? Is this just a dream?
IMO: Anticlimactic and tedious at times, which is a shame because so much more could've been developed with the characters and base story. Sadly it prolonged the inevitable bland ending.
Amai Akuma Ga Warau