Maiyuki decided to live with her parents-in-law due to her husband's transfer. My father-in-law was a good old man, had a terrifying libido, and hugged his mother-in-law every night. The pant voice that can be heard at night. Maiyuki's crotch was aching at the passionate and beast-like copulation where the flesh collided. Husband is pale in contrast to father-in-law. Maiyuki's heart, which has strong sexual desire and wants to have sex every night, gradually changes to her father-in-law. Maiyuki, whose desire to be embraced by her father-in-law swelled, seduced her father-in-law herself on a dangerous day ...