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Himouto! Umaru-chan is a Japanese manga series written and illustrated by Sankaku Head. It was serialized in Shueisha's seinen manga magazine Weekly Young Jump from March 2013 to November 2017, with its chapters collected in twelve tankōbon volumes. An alternative version was serialized for two chapters in Shueisha's monthly magazine Miracle Jump in 2012. A sequel manga titled Himouto! Umaru-chan G ran from November 2017 to April 2018 and was collected in one volume. An anime television series adaptation aired in 2015. A second season titled Himouto! Umaru-chan R aired from October to December 2017.