Eromanga Sensei

Masamune Izumi is a high school student who writes light novels while caring for his younger sister, Sagiri Izumi, who has shut herself inside her room for a year. Since the siblings are each other's only family, Masamune hopes she will eventually come out and reconnect with life outside. His professional and home lives unexpectedly collide when he learns that the illustrator working under the pen name “Ero Manga Sensei” is actually Sagiri.