[Distribution limited special edition] with special images such as image footage and masturbation scenes that are not included in the regular version of Maternal and Child Copulation ~Akagi Yamaji~. The contents of the regular version are as follows: On that day four years ago, we made a mistake just once... Since Seika lost her husband eight years ago, she has been living with her only son. Her memories of four years ago come to mind as she nears the end of her son, who is going far away with her job. When she heard her son's wish for college entrance celebration, she was asked for a body, and she piled up her body only once. Her hot spring inn makes her abandon her daily reason, and Seika releases her instinctive libido in an extraordinary life. And today she's again, she's making the same mistakes...
