The August issue of Square Enix 's Monthly Shonen Gangan published the final chapter of the Hiyo Umeidou and the Master's Ambition manga on Monday. Square Enix will therefore publish the fourth and final volume of the manga this fall.
The story centers on the maid Hiyo Umeidou, who comes equipped with all sorts of oppressive futuristic technology and mysterious radio technology, all to fulfill her master's ambitions.
The manga adaptation of Hiyo Umeidou and the Master's Ambition launched in Monthly Shonen Gangan magazine in February 2016. Square Enix published the manga's third volume in February 2019.
Source: ANN