Umaru's classmate. She lives on the first floor of the same apartment as Umaru. She has a shy and gentle personality, but has a strong stomach.

The sibling gag comedy manga centers around Umaru, Taihei's little sister who boasts beautiful looks as well as prowess in both school and sports. However, "Himouto" (beautiful little sister) has a certain secret.
 
(Source: Anime News Network)

[Twitter](https://twitter.com/akari_kageyama)

On January 1st, 2024, she announced on her Twitter account that she got married to a man from outside the entertainment industry. 

__Non-anime roles:__
Aoba - Azur Lane
Furutaka - Azur Lane
Kako - Azur Lane
Kinugasa - Azur Lane

__[Weibo](https://www.weibo.com/yorukiyama) | [Bilibili](https://space.bilibili.com/722472)__

High-school beauty Umaru seems like the perfect teen wunderkind, but she's hiding a shocking double life. As soon as she gets home, she becomes a junk-food-inhaling, soda-guzzling, video-game-addicted slob. The only one who sees this unsavory side of Umaru is her beleaguered older brother Taihei, who does his best to keep up with his work while trying to get his little sister to behave like a decent member of society. As she makes new friends and gets into a number of wacky situations, Umaru will continue to fight for her right to stay up all night binging potato chips and anime. (Source: Anime News Network)

Shorts included in the Blu-ray and DVD releases of the TV anime. They take place in a world with multiple Umaru-chans.

In public, Umaru Doma appears to be the perfect high school student: hard-working, refined, and totally responsible. But the minute she gets home to her older brother Taihei–and dons her famous hamster hoodie–she devolves into the ultimate bratty little sister! She’s happy to roll around all day in an otaku cloud of games and junk food while her exhausted older brother takes care of everything in the house. In this hilarious comedy about family, friendship, and the nonsense we put up with (from the people we love), Umaru and Taihei will find a way to make it work!
 
(Source: Seven Seas Entertainment)
 
Note: The chapter count includes 14 extra chapters.

Episodes included in the manga's seventh and tenth volume.

You thought it was over? Surprise! Umaru and friends are back for one final hurrah, with laziness levels powered up, and unexpected new sides of all your favorite characters. But no matter how much changes, one thing will always be the same: the himouto life is full of love and laughs!
 
(Source: Seven Seas Entertainment)

Spin-off of Himouto! Umaru-chan about Umaru's friend, Ebina.
 
Includes 2 bonus chapters.

Nana Ebina