[Ugh! I'm gonna cum! Please break me more!] [Even after climax, the father-in-law's machine piston keeps going for multiple creampies!] The Ishihara couple enjoys a blissful married life, but they can't seem to find time for each other at night. Hope's desire builds up day by day... On the other hand, her father-in-law, who lives with them, is still very active and passionately loves his wife every day. One day, Hope, unable to bear the rhythmic piston sound that echoes in her womb every night, decides to seduce her father-in-law. Even though he's taken aback, the father-in-law can't resist Hope's temptation and starts going at it seriously! She's driven to the edge by his precise and relentless piston action...