This "sibling romantic comedy" revolves around Masamune Izumi, a light novel author in high school. Masamune's little sister is Sagiri, a shut-in girl who hasn't left her room for an entire year. She even forces her brother to make and bring her meals when she stomps the floor. Masamune wants his sister to leave her room, because the two of them are each other's only family.
Masamune's novel illustrator, pen name "Eromanga," draws extremely perverted drawings, and is very reliable. Masamune had never met his illustrator, and figured he was just a disgusting, perverted otaku. However, the truth is revealed… that his "Eromanga-sensei" is his own younger sister! To add to the chaos that erupts between the siblings, a beautiful, female, best-selling shoujo manga creator becomes their rival!
| Title | Air Date | Duration | ||
|---|---|---|---|---|
| Season 1 | Episode 1 | My Little Sister, and the Sealed Room | 2017-04-08 | 25 min |
| Season 1 | Episode 2 | Class Rep with a Normie Life, and a Fearless Fairy | 2017-04-15 | 25 min |
| Season 1 | Episode 3 | Buck Naked Mansion and the Fallen Master | 2017-04-22 | 25 min |
| Season 1 | Episode 4 | Eromanga Sensei | 2017-04-29 | 25 min |
| Season 1 | Episode 5 | Let's Plan a Light-Novel with Your Little Sister | 2017-05-06 | 25 min |
| Season 1 | Episode 6 | Masamune Izumi and the Nemesis of Ten Million Copies | 2017-05-13 | 25 min |
| Season 1 | Episode 7 | Little Sister and the Most Interesting Novel in the World | 2017-05-20 | 25 min |
| Season 1 | Episode 8 | Dreaming Sagiri and Summer Fireworks | 2017-05-27 | 25 min |
| Season 1 | Episode 9 | Little Sister and the Fairy Island | 2017-06-03 | 25 min |
| Season 1 | Episode 10 | Masamune Izumi and the Younger Senpai | 2017-06-10 | 25 min |
| Season 1 | Episode 11 | How the Two Met and Future Siblings | 2017-06-17 | 25 min |
| Season 1 | Episode 12 | Eromanga Festival | 2017-06-24 | 25 min |
| Writing | Tatsuya Takahashi | Series Composition |
| Sound | Masaharu Yamanouchi | Music Producer |
| Visual Effects | Kanako Hokari | Color Designer |
| Art | Tsubasa Kanamori | Assistant Director of Photography |
| Directing | Ryohei Takeshita | Series Director |
