Considered one of the most talented students at Doumori Elementary, Ai Shinozaki is a 6th grader in class 6-5, one year ahead of Nube's class. A member of the Shinozaki zaibatsu, she's a beautiful girl who looks older than she really is (tall, slender, and with a big bust that rivals Miki's and Ritsuko-sensei's), has mastery of several musical instruments including the violin and piano (in the anime, her episode happens right after she wins a violin contest), as well as fluency of three foreign languages other than Japanese. However, under this perfect exterior, this spectacles-wearing female has many problems of her own.