15-year-old Alfred Saionji, heir to the venerable Saionji family, spends his days striving to become a first-class gentleman while enduring strict family rules.
His solace comes from his maid, Magly.
Thanks to her, a cool and beautiful maid, Alfred's life has become colorful, but...
In fact, her true identity is a vampire. Once she sees or sucks blood, her very naughty nature comes out, and Alfred immediately has his blood sucked at her command...

This is a love story between a boy who seeks the strength to protect a girl and a clumsy, naughty vampire maid who is in love with him.