Newlywed porn manga artist Jun Kitano is presented with an impossible challenge by editor Sonoko Mifuji: complete a full manga anthology in just 30 days to save her from her boss's whims. To achieve this feat, Jun employs his "Hyper Erection Mode," a state of superhuman productivity fueled by his wife Miyuki's devotion. As he begins drafting his first story, Jun races against time to meet the deadline.
When Miyuki's younger sister, Kozue, asks to become his manga assistant, Jun decides she must first learn the true meaning of eroticism. Using both sisters as models for his latest schoolgirl and sci-fi fantasies, Jun pushes his "Hyper Erection Mode" to the limit to meet a looming deadline, eventually eyeing his editor as a potential source of inspiration.
Struggling to meet a looming deadline, porn manga artist Jun Kitano pushes himself to the limit in "Hyper Erection Mode." When his friend Sonoko Mifuji visits, a relaxing bath with Miyuki sparks a bold new idea for a story centered on a forbidden teacher-student relationship. By using the two women as inspiration for his "Orgasm Laboratory" concept, Jun successfully completes his work, leading to a bestseller and a well-deserved vacation with Miyuki.