It seems that the girl from our May rumor post is actually half-Japanese model Kagami Seira. The two were seen together on Yurakuchou Gadoshita, which is a popular destination for salarymen as it is home to many traditional Japanese bars. It's not a romantic place to have a date, but it is a good place to take a date if you want to try to avoid being seen. Unfortunately for this couple, it seems that they were spotted nonetheless.
Kagami Seira (22) is half-Japanese, half-Canadian, and attended the University of Toronto. She works as a model and has also released a single, "Kaleidoscope." She had a live singing performance in July, which Yamashita is rumored to have attended. Sources say that they are happy and comfortable together, and Kagami often talks with her staff about her good relationship.
The staff here at SN likes Seira, but has heard from insiders that she views her relationship more as a way to boost her popularity than as a love match. For this reason, we hope this relationship is short-lived!