The Secret S01 E11 Kanako's Counterattack

"A shocking work that depicts the extreme love-hate between a man and a woman with a strong touch of suspense on the theme of marriage."

Kanako (Chikako Kaku) and Mario (Shiro Sano) learn that Miyuki's (Chisato Yamasaki) pregnancy was a kyogen. That night, Kanako confesses her relationship with Mario to Shingo (Yuichi Haba).