Thanks to @Crimsondramon and @Jason_Lieberman for this. I think this is happening in Japan. Dynasty Warriors 7 (also known as Shin Sangokumusou 6 in Japan) has the product code download as a bonus, and yes, it’s Wang Yuanji as the waitress of Lawson – the Lawson’s outfit and weapon! Lawson is the top convenient store chain franchise in Japan – you can check it here.
If you want to know who Wang Yuanji is, why not check out the official site @ www.dynastywarriors7.eu :)