Reina Mori was once a good girl, she had a wonderful childhood with loving parents. Just turning 18 she wanted to branch out with her sexuality and became a call girl. She is currently a senior at high school, her grades aren't that great, and she completely lost touch with her family. She feels the only way to make a quick buck is to charge for services, because of her young age and thin body. Reina currently sees Chika as a role model, however, talks to Mizuki when she has personal issues effecting her, which is often. Mizuki talks to Mori quite often to get her out of the call girl business since it can cause her danger. Reina loves the rush and the feeling, as well as being paid for it. She is currently trying to find other types of work, but because of her lack of grades as well as attendance at school, she has become unreliable. She is Mizuki's neighbor, so they talk often. She currently stands at 165 cm (5 ft 5 inches) and weighs at 46.2 kg (102 lbs). She test herself on a daily basis to keep her clients happy. She currently lives with Haruno, and is very active at night.