Returning to the town where she spent her high school years, Anna Senkawa lives a new life as a married woman. However, the moment she reunites with her former teacher, her life takes a drastic turn. Unable to resist, she is drawn back into the masochistic feelings he once instilled in her. Though she knows it's wrong, an uncontrollable urge begins to take hold of her, growing stronger with each passing day. What was once mere instruction now transforms into overwhelming desire. The unforgettable love and obsession etched into her heart continue to echo within her, reigniting a passion long suppressed.