Weekend Marriage(1999)

Weekend Marriage is a series about two sisters caught in a spiral of resentment and rivalry. Yoko has always been the favored daughter, basking in attention while her younger sister Tsukiko lived in her shadow. When Tsukiko's career flourishes and she becomes engaged, Yoko—struggling with her own stalled marriage and professional setbacks—grows desperate to undermine her sister's happiness. Tsukiko refuses to be sabotaged, and their escalating feud pulls their entire family into the conflict. The series explores how childhood comparisons and unresolved jealousy can fracture even the closest bonds, as both sisters fight to reclaim control of their lives.