Four female medical students from a prestigious university focus on "ejaculation" as their thesis topic. To explore the mechanisms and psychological depths of what excites men and leads to climax, they conduct various experiments using a male guinea pig. This theme goes beyond mere physiology, delving into the core of human instinct and emotion. Ejaculation is a fascinating subject both scientifically and philosophically, and uncovering its mysteries becomes an adventurous quest of discovery. Tackling this profound and enigmatic subject from an academic perspective, this work is an intellectually stimulating journey that challenges knowledge and curiosity.