This manga is about haruto (main character) and the maid called mia who was sent by Haruto's father to do lewd things with him or at least try.
In the format 4-koma is basically jokes and situation of daily routine,after few chapters new character begin to apper, Hina (mia's sister) a cute girl that everytime that meet haruto something lewd happen, Subaru (male friend of haruto) he think that Haruto do lewd things with Mia every single day, while hina think that haruto likes him and micchan who declare herself as fiance of haruto because of a promise they have made in the childhood and then began the harem of haruto.
If you like 4-koma mangas with lewd joke this is for you...otherwise don't read.