May Your Misery Exceed Mine

Housewife Keiko Natori lives happily with her elite banker husband, Shinichi. Her husband, best friend and little sister all support her. But on their first anniversary, Keiko sees a message on Shinichi's phone: Last night was fun. The sender? Her best friend Yuka. It's only the beginning of a brutal battle driven by jealousy and desire.

Keiko suspects her husband of cheating with a friend, unaware that the real culprit is her trusted sister, Shiho. Having always lived to make Keiko miserable, Shiho orchestrated the marriage just to tear it apart and steal her sister’s happiness.

Keiko begins to suspect her husband Shinichi is cheating, never imagining the other woman is her sister Shiho. She accuses her best friend Yuka and loses her. While Shiho secretly smirks, Keiko learns she's pregnant with Shinichi's child. But as Shiho's twisted feelings grow, her attempt to destroy her sister's happiness leads to tragedy.

Tragedy strikes when Keiko miscarries after falling down the stairs with Shiho. While Shiho feigns grief to gain sympathy, she is secretly thrilled. However, a revelation from Yuka shifts Keiko's perspective, turning her suspicion toward her sister.

Shiho’s shocking confession of love for Shinichi leaves Keiko in despair. While Shiho revels in her sister's misery, Keiko finds the strength to face her husband and reclaim her life. However, her resolve is tested when Shiho delivers a vicious blow.

I'm carrying Shinichi's child, Shiho shocks everyone at their parents' house. Her father lashes out at Shinichi. Watching her family break, Keiko declares, I'm divorcing you. A month later, she lives alone in a small apartment, ready to restart, only for Shiho to strike. Keiko finally uncovers her sister's cruel nature and prepares to fight back.