Learn about lewd culture with a saint overflowing with sexual energy♪ Saint Matina and hero Jun head to the Demon Castle with Demon King Ohma to save the world! The world is now facing a crisis, and Saint Matina's "energy of stamina" is needed to cover the gate to the underworld, which is being unsealed, with a barrier! Matina is eager to fulfill her duties as a saint, but what she needs is "sexual" energy, commonly known as "erogeny," and Matina is a lewd saint with 10,000 times more lewd energy than an ordinary person!! And Saint Matina's lewdness is seen, and for some reason she becomes a teacher of lewd culture...!?