November, 2007. Aihui, a Chinese national, was awarded blue belt under Professor Quint. She is the first Chinese woman to be awarded a blue belt in China. Aihui started jiu-jitsu one year ago and has never missed a single class. Her hard work and enthusiasm finally resulted in her promotion. A Gracie Jiu-jitsu blue belt usually requires a minimal of 100 hours of instruction and 100 hours of sparing. Congratulations to Aihui!