In order to help viewers figure out the mystery of IMOUTO, Crunchyroll manages to get the rights to simulcast Nakaimo - My Little Sister is Among Them! Besides the mystery of having to figure out the main character's sister, Nakaimo also involves his search to find a future wife so that he can fulfill the requirements to become the head of the family household.
If I am hearing this correctly, Nakaimo's protagonist sounds like a guy raised by a rich family. Taking this into account, why doesn't he just run a DNA test with every girl in the school? That way he can figure out the identity of his sister -- problem solved. But then again, they probably want to lead people on for the sake of creating an entertaining series.
You can find the first two episodes of Nakaimo already available on the show's Crunchyroll page -- now that's what I call good service.
From other sites around the web