Rio: Rainbow Gate!

The "Howard Resort Hotel" is an entertainment destination where people gather from around the world to grab huge fortunes. In the casino is a beautiful female dealer named Rio Rollins, known far and wide as the "Goddess of Victory". In order to approach closer to her mother, one of history's greatest dealers, she does battle to gather up the legendary cards called "gates". Those who gather all 13 gate cards are presented with the title MVCD (Most Valuable Casino Dealer), proof that they are a top dealer. Set in a vast resort, an exciting battle begins with rival dealers that'll take your breath away! Throw in some "supreme comedy" and a story that makes you cry when you least expect it, these cute and sexy girls will explode off your screen! With everyone's cheer of "Leave it to Rio!", Lady Luck'll be with you, too!

NAKAIMO - My Little Sister Is Among Them!

Is insanity hereditary? Shougo Mikadono's beginning to think so, because the terms of his late father's will seem crazy and following them may drive Shougo bonkers as well. Oh, it sounds simple at first: before Shougo can claim his VERY large inheritance, he just has to start attending a certain new school and find a nice girl to marry. It's a little unromantic, but perfectly do-able, right? After all, all the girls seem quite friendly, so all Shougo has to do is find one he has something in common with. EXCEPT, and here's the kicker, it turns out that Shougo has WAY too much in common with one of them, because she's actually his long lost sister! And he has no idea which one she is! Will Shougo meet and court his Miss Right without committing something very morally wrong? Can he find his future bride without slipping into the wrong set of genes? And if his little sister does reveal herself, just how much will be revealed and under what circumstances? (Source: Sentai Filmworks)

Sister Princess

Wataru Minakami is a top student who failed his high school entrance exam because of a computer glitch. He later discovered that he was accepted to Stargazer Hill Academy, which is located at a mysterious place called Promised Island. At the request of his father, Wataru is whisked away to the island, and before he can settle in, a dozen of cute and charming girls start to flock him and claim to be his younger sisters. As Wataru gets closer to his newfound siblings, a deeper mystery as to why they were sent to the island comes to play. (Source: Anime News Network)