Seiko ended up in this kind of relationship as a result of her actively approaching men through reverse pickup. He's the perfect playmate—someone convenient to meet, with the rule that as long as she returns home by five, she's free to do whatever she wants. Their sexual preferences oddly match, and by meeting like this occasionally, they maintain an affair. Driven by a desire to torment him, Seiko travels two hours to Tokyo, then begins giving him a handjob using the hand with her wedding ring on. She ties him up, gives him a facial, and rushes home without even showering. With the same mouth that just sucked his cock, she greets her husband, saying, "Welcome back," as he touches her ass and legs. Ah, women are truly terrifying creatures.