Summary: Makino Yayoi is a 16 year old high-school girl who made a promise with her mother that she wouldn't have sex until she turned 20, because, "You'll grow a dick!" hahaha. This story is about how Makino goes through every sexual act in the book to delay sex with a fellow classmate, Suzuki-kun, who she mistakenly begins to believe, wants to rape her and take her virginity!