Three middle-aged ninja ladies from the past time-traveled to Reiwa! Menako, Natsu, and Mihaka, these sexy mature female ninjas, wreak havoc in a modern-day terakoya. At first, the three are bewildered by this unfamiliar world, but after capturing male students and teachers, they turn the tables! The cock of men in this era isn't bad... 」And then, thorough punishment with secret technique dildo summoning and ninja knife handjob
