[Satsuki Mei Bondage Unveiled! "Maybe we, father and daughter, have become drowned in guilt..." After losing her mother, Mei, who lives with her father, gets into a fatal accident one day while out with her father. Although her father was not killed, he injured his leg, and out of guilt, she spends her days visiting him... Training, bondage, creampie... With a sense of guilt, the girl continues to receive unreasonable punishment while screaming in pain...!