Otaku USA Magazine
Himouto! Umaru-chan Spin-off Manga Announced

Author Sankaku Head of Himouto! Umaru-chan ​fame announced plans to expand the series with a spin-off manga. Akita Imokko! Ebina-chan will follow Umaru’s shy friend, Nana Ebina, when it begins serialization on Nico Nico Seiga at the end of November.

You can see Sankaku Head’s Twitter announcement—which pairs an image with the following text (translation via Crunchyroll): “New series announcement! At the end of November, Akita Imokko! Ebina-chan will begin serialization on Nico Nico Seiga and others! I want to create a manga that makes the most of Ebina-chan’s maximum cuteness!”—below.

The main Himouto! Umaru-chan manga started serialization in the pages of Shueisha’s Weekly Young Jump in 2013, and its anime adaptation kicked off back in July of this year. 

Source: My Game News Flash via Crunchyroll