From MangaHelpers:

The age of the maid robot has begun! Now, each family has at least one maid robot in their household, and Souta's family is no exception. Souta grew up with his maid robot since he was a young boy. He has learned that there are people out there that have fallen in love with their maid robot, but he is determined to not be one of those people.

His maid robot, Tsukushi, will do whatever it takes to make her master happy!