"Natsu Ga Owaru Made" is a hentai series centered on Yui, a schoolgirl who, to protect her childhood friend and lover Kou’s dreams, reluctantly becomes entangled with her perverted teacher. As the summer unfolds, Yui faces a dark journey of blackmail, submission, and complex desires, where humiliation and pleasure intertwine, testing her limits and decisions. This intense series explores themes of sacrifice, control, and forbidden lust until the summer ends.