A college student from the countryside who attended all-girls schools from middle school through university, Chikako-chan. Turning 20, she feels deep insecurity about never having had any experience with men, and decides to liberate her body through filming. Through her first blowjob, penetration by a man's penis, and touching toys she's never used before, her heart gradually grows hotter. During her first-ever shoot, overwhelmed by pleasure beyond expectations, she feels everything with her entire body, moaning in ecstasy with a soft regional accent—highlighting her pure emotions and innocence. This is a work capturing her genuine struggle and the intensity of a complete beginner's first experience.