The special edition of the 10th volume of the Himouto! Umaru-chan manga retails for 3672 yen ($32.37 US) and will be released in Japan on April 19, 2017.
The OAD will include 2 new episodes adapting the “Umaru and Taihei’s Birthday Date” and the “Graduating from Himouto” chapters of the manga.
Sleeping, gaming, watching TV, eating junk food, drinking cola… that’s almost all she does at home, leaving all the housework to her brother.”