Denpa Kyoushi (TV) S01

The anime's story is based on the manga and is about Junichiro, a young man who is obsessed with manga, anime, and computer games. He was a genius who published his own articles in scientific magazines at the age of 17, but after graduating from university, he became a NEET (someone who neither studies nor works) and became immersed in his anime blog. His sister, Suzune, who couldn't watch her brother's downfall, forces him to work at Ichou Academy, where she also attends. The academy's principal, "Kiomi Hiragi", introduces Kagami to a new stage of life as a teacher.