His Majesty the Demon King's Housekeeper (魔王陛下のお掃除係, Maō Heika no Osōji-gakari) is a Japanese manga series written by Saiko Wadori and illustrated by Mika Kajiyama.

It began serialization in Akita Shoten's shōjo manga magazine Princess in February 2019.

Written by Saiko Wadori and illustrated by Mika Kajiyama, His Majesty the Demon King's Housekeeper began serialization in Akita Shoten's shōjo manga magazine Princess on February 6, 2019.

[2] Its chapters were collected into eleven tankōbon volumes as of November 2024.

[3] The series is licensed in English by Seven Seas Entertainment.