An innocent anime-loving girl transforms into a gal!! In order to become a popular gal, she secretly trains in creampie sex with her uncle without her parents knowing!! ★After being dumped by her classmate Ichinose-kun, Airi, an otaku girl, decides to become a gal in order to become the type of girl Ichinose-kun likes! And...for some reason, she decides to practice "creampie sex" on her uncle's advice...is creampie sex the norm for gals these days...? ? ★Adolescent gal sex diary kept secret from mom and dad☆