Sara, who had been troubled by her relationship with her adopted son Atsushi, was probably wary of the young mother who suddenly appeared. But today, she wanted to close the distance with Atsushi. With renewed determination, she headed to Atsushi's room... only to find him masturbating! Despite the shock, Sara saw this as an opportunity and made an outrageous proposal to improve their relationship. "I can't go all the way... but how about trying raw sex with your mother-in-law?".