Eromanga Sensei (2017)

S1E7 Little Sister and the Most Interesting Novel in the World

Masamune is determined to release his latest work as quickly as possible and eagerly enters the light-novel contest, “Light-novel Tenkaichi Budoukai.” However, his excitement is quickly overshadowed when the renowned author Senju Muramasa joins the competition and boldly tells him she plans to shatter his seemingly futile aspirations. What could possibly motivate her to do such a thing?