Written by Fushimi Tsukasa, Illustrated by Ikeda Sakura
Kyousuke Kosaka, a normal seventeen-year-old high school student, hasn’t gotten along with his younger sister, Kirino, in years. For longer than he can remember, Kirino has ignored his comings and goings and looked at him with spurning eyes. It seemed as if the relationship between Kyousuke and his sister, now fourteen, would continue this way forever.
One day, however, he finds a DVD case of a magical girl anime entitled Stardust Witch Meruru lying in the entranceway of his house. To Kyousuke’s surprise, inside the case, an adult video game disc instead!