Eri and Kiyoshi have been married for three years. Their relationship is good, but the frequency of sex has decreased. Eri felt unsatisfied but couldn't ask the indifferent Kiyoshi, so she secretly masturbated to comfort herself. One day, her brother-in-law Takeshi, who often comes to play, sees her masturbating. Desperately trying to cover up, Eri says, "It's not something to be ashamed of," and presses for a relationship with Takeshi. Despite thinking it's wrong, Eri's curiosity and Takeshi's insistence overcome her, and she gradually reveals the desire she had been hiding...
ATTACKERS
