Imouto sae Ireba Ii.

This is the story about the daily life of a young siscon novelist, Itsuki Hashima with his perfect little sister Chihiro, the genius illustrator Nayuta Kani, his best friend Miyako Shirakawa and some insane partners from his publishers. (Source: MAL News) Episode 1 will be previewed at a screening at Shinjuku Piccadilly on September 6, 2017. Regular broadcasting will begin in October, 2017.