After the graduation, all was going well for Kyosuke and Kirino putting behind what happened between them and simply plan to go back as simple siblings but then again they were in for another surprise. NOTE: The events happen after the ending of the original series....
For several years, Kyousuke's relationship with his younger sister Kirino has been cold, to the point that they only share greetings. But one day, Kyousuke finds a moe anime DVD fallen in their entry hall. His interest piqued, he looks for the owner, only to realize it belongs to Kirino. He's shocked, but more surpris...