Mother-in-law, much better than my wife ... Hikari Akatsuki

Hikari Akatsuki, a mother-in-law, finds herself in a compromising situation with her son-in-law, Daisuke. As a mother-in-law, she is supposed to maintain a maternal role, but instead, she engages in a taboo relationship with Daisuke, who is married to her daughter, Yuka. The central kink of this movie revolves around the forbidden and incestuous nature of their relationship, exploring the complexities of familial bonds and the blurring of roles.