Perfect adultery

Takuya and Chiharu Yoshioka have been happily married for 3 years, and both have stable jobs. Takuya's happiness begins to crumble when his friend, Sakurai, tells him it's the great age of infidelity. Takuya is repulsed by how the newly married Sakurai is cheating, but he can't stop thinking about what he said. It's an unpredictable mystery about a wife's unusual showcase of love! ©NIPPON TV

3 years into his marriage, Takuya is prompted by his friend to check his wife's phone. Finding no signs of cheating, Takuya repents and apologizes to Chiharu. But it was all her trap! Chiharu was secretly in contact with someone named "S." Hearing that her painting instructor is having an affair, Takuya becomes worried and reaches for her phone again. Will he find proof of her affair?! ©NIPPON TV

Takuya finds that Chiharu was messaging someone named "S" through a payment app. He identifies the hotel lounge through her payment history and sees Chiharu enter the hotel! Panicked, Takuya calls Sakurai for help. Meanwhile, Chiharu meets with S but sees that Takuya is nearby on her GPS. He's scared but wants to know! Takuya finally makes up his mind?! Who is "S"?! ©NIPPON TV

Takuya believes Chiharu's explanation about S. The next day, he spills coffee on her and panics, but she finds it endearing. At night, he meets Sakurai and Uchino to tell them Chiharu wasn't cheating and invites her over. She says painting class isn't over yet and sends a photo. Chiharu comes home late at night, and Takuya realizes why the photo seemed off. Where did she mess up?! ©NIPPON TV

S turns out to be Sasaki, a bookstore employee. Takuya goes to see him, but Sasaki escapes him. Takuya suspects that he's being tracked. Chiharu isn't shaken to hear that Takuya went to the bookstore. The next day, Chiharu checks the GPS to confirm that Takuya is at the gym before meeting Sasaki at the hotel, but that was Takuya's trap! It's a battle of wits! ©NIPPON TV

Chiharu admits to the affair and has Takuya decide whether to divorce or not. For 3 weeks, Takuya sleeps on the couch and eats alone, but still can't make up his mind. Wanting them to reconcile, Sakurai and Uchino plan a barbeque and invite Mina and An from Chiharu's painting class. Meanwhile, Takuya finally makes up his mind. But another unexpected trap awaits him… ©NIPPON TV