Yamada

山田

Yamada is a high school girl best characterized as oversexed, flirtatious, and lustful. She is notably vain and unashamedly flaunts her appearance in public. When she entered high school, her objective was to engage in intimate relations with 100 different men, yet her insecurities as a virgin led her to reject any advances. Yamada believes that losing her virginity to an inexperienced boy is the first step toward achieving her goal, which drives her to pursue Takashi Kosuda. Although she initially views him merely as a means to satisfy her lust, she gradually develops genuine feelings for him. Despite living at home with her younger sister, Yamada is unashamed of her licentious habits, which include highlighting sexual terms in the dictionary and collecting erotic magazines that she stores in her room.
Assisting her in these goals is a personal deity who appears as a super deformed version of Yamada, except for the mustache, and floats on a pink cloud. This character also serves as a narrator at times, recapping past events and occasionally breaking the fourth wall to address the audience.