​It has been a year since Aoba Suzukaze started working at the Eagle Jump game company. In that time, she and her eccentric coworkers in the character design department have worked hard to release the company's newest game: Fairies Story 3. With their latest title now complete, a new project must begin—starting with a contest to decide the character designs for the upcoming game. Through hard work, dedication, and some guidance from the previous character designer, Kou Yagami, Aoba wins the contest and begins her new role as lead character designer. However, her new job is not an easy one. In addition to having extra work and longer hours, Aoba questions whether she is the right fit for the job. As she overcomes her inexperience with the help of her friends and coworkers, Aoba is willing to face any challenge to make Eagle Jump's newest creation, a cutesy game called Peco.

The second stage of the battle royale known as the Sekirei Plan is underway. Shintou Teito has been closed off; no Sekirei or Ashikabi may leave. Minato Sahashi and his harem of Sekirei must now prepare to fight new battles as changes to the rules are put into place. However, not all groups will return to the battle: some Sekirei are loved very much by their Ashikabi partners, who would rather forfeit the prize than see them perish. In the midst of the action, someone close to Minato may be more involved than he had ever imagined, and threats lurk around every corner. There are even rumors that the Single Numbers, the most powerful type of Sekirei, have entered the fray. In the eyes of the Game Master Minaka Hiroto, everything is proceeding according to plan.

Umaru Doma is a model student who has a hidden side: when she gets home each day, she puts on her hamster hoodie and turns into a sluggish otaku fond of junk food. As Umaru continues these daily antics, the friendship between her and her classmates—Nana Ebina, Kirie Motoba, and Sylphinford Tachibana—deepens, and more and more interesting events begin to unfold. Of course, these events give rise to numerous questions. What did Nana ask of Umaru's brother Taihei? Who is the mysterious girl with the diamond hairpin? And most important of all: why does this girl seem to know Umaru? These questions and more will be answered in Himouto! Umaru-chan R!

Yuuki Aito is a perverted manga artist who appreciates panties, wishing to draw as many as he can. Being surrounded by numerous female assistants, he is constantly asking to use them as references for the manga he draws. Although Aito has an extremely degenerate mind, he can also be a very kind, generous, and helpful person. The duality of his behavior confuses his assistants—do they love the considerate side of him that he rarely displays, or do they hate him for the perverted thoughts he has most of the time?