Adolescent Lolita Girl: Iku Natsumi has the developing body of a young girl, her chest just beginning to bud. More interested in sex than studying, she starts learning about eroticism and pleasure through friends' stories and manga. Craving real experience beyond mere knowledge, she secretly harbors desires and gradually approaches older boys, her feelings fueling physical growth. Here is the pure, innocent journey of a teenage girl taking her first steps toward adulthood.