Nogizaka46 member Shiraishi Mai and AKB48 member Kojima Haruna was invited to 4th Arima Kinen Premium Reception party (有馬記念レセプション) at 22 December 2014.
The Arima Kinen (有馬記念) is a Grade I flat horse race in Japan open to Thoroughbreds which are 3 years old or above. It is run over a distance of 2,500 metres at Nakayama Racecourse, and it takes place annually in late December. It is one of the two "All-Star" races in Japanese horse racing.
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Shiraishi Mai and Kojima Haruna in Nurse costume in TV show
http://akb48-daily.blogspot.com/2014/12/shiraishi-mai-and-kojima-haruna-in.html
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