Yamada(山田Yamada) is a high school girl who is best described as oversexed, flirtatious and lustful. She is particularly vain and is unabashed in flaunting her looks in public. Upon entering high school, her goal was to have intimate relations with 100 different men; however, her insecurities as a virgin caused her to turn down any advances. Yamada believes the first step towards realizing her dreams is to lose her virginity to an inexperienced boy. This leads her to pursue Takashi Kosuda when she accidentally falls on him at the bookstore. While initially seeing him as a tool for her lust, over time she starts to develop genuine feelings for him which includes jealousy when she finds him in the presence of another female companion, however is in complete denial to this. Despite living at home with her younger sister, Yamada is unashamed in her licentious habits, which involve highlighting sexual terms in the dictionary, collecting women's sex magazines, taking pictures of animals having sex, and after freaking out over Kosuda's bodily reaction, downloaded pictures of a hundred uncensored penises. Yamada is an excellent student although that can partly be attributed to reading the dictionary and her ability to quickly read and memorize articles about sex.
Yamada's first name is not revealed in the series.
