Kujou Aiko ni, Seisan Naru Shi wo

Kujou Aiko is a nationally renowned actress. Having been active in the entertainment industry since she was a child actress, she is kind, lovely, and glamorous... but behind her faint face is a terribly selfish, arrogant, and evil woman. One day, Aiko sets her sights on Shuuhei, a man who works at an advertising agency. He has a look that Aiko likes, and a wedding ring on his ring finger... seducing a married man is the most fun game for Aiko. Shuuhei and his wife, Ayano, get caught up in Aiko's flirtation, and their lives begin to go awry...!! An eccentric revenge story set in the entertainment world.

(Source: Shueisha, translated)