Yui didn't come alone when she moved in the Sakmaki mansion. Meet Rai Hayashi. She's Yui's one and only best friend as well as her adoptive sister. At first sight she looks like your normal, cute girl, but once you get to know her, she can be a total weirdo. Sure, some people might think she's creepy. Because, then again, what normal girl carries a plastic skull and calls it her 'version of a teddy bear?' Adding to the 'creep factor' she also carries different sharp objects everyday. Another thing that might also seem strange, she's so obsessed with 'scary' things such as vampires, one might even say it's not healthy. But, she's a type of girl who doesn't give a damn about what other people say, anyway. Isn't she something special, huh?