Eromanga Sensei Episode 1: My Little Sister, and the Sealed Room
Episode 1 of 12 of Eromanga Sensei, aired April 8, 2017, 25 minutes. Available with English subtitles and dub where released.
Episode summary
Masamune Izumi is a high school student also working as a light novel author. He works with a mysterious illustrator who draws really erotic art for his light novels. In the midst of trying to deal with school and his shut-in sister, he discovers the identity behind this Eromanga-sensei!