Ore no Imouto ga Konna ni Kawaii Wake ga Nai

A seventeen-year-old high school student struggles with a distant relationship with his younger sister, who has grown increasingly cold toward him. One day, he discovers a DVD case for a magical girl anime near the entrance of their home, which contains a hidden adult video game. When he mentions the anime during dinner, it causes a strong negative reaction from his parents, particularly his father, a police officer. Later that night, the sister unexpectedly enters his room and asks to speak. She takes him to her room to reveal a large, secret collection of moe anime and bishoujo games.