Himouto! Umaru-chan
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)
Episode 1 - Umaru and Onii-chan
Episode 2 - Umaru and Ebina-chan
Episode 3 - Umaru and Her Student
Episode 4 - Umaru and Her Rival
Episode 5 - Umaru and Summer Vacation
Episode 6 - Umaru's Birthday
Episode 7 - Umaru's Onii-chan
Episode 8 - Umaru and Christmas and New Year's
Episode 9 - Umaru and Valentine's
Episode 10 - Umaru and Now and Once Upon a Time
Episode 11 - Umaru's Days
Episode 12 - Umaru and Everyone