Oh Mother Oh Sister(2000)

Oh Mother Oh Sister is a South Korean drama about twin siblings separated at birth who are reunited under heartbreaking circumstances. When Seong Ri's mother abandons her, the girl is forced to live with her biological father—and discovers she has a twin brother, Kyeong Bin, plus three half-sisters she never knew existed. Struggling to adjust to her new family and grieving her absent mother, Seong Ri slowly builds connections with those around her, including her oldest half-sister Yeo Kyeong, who lost her voice in a childhood accident. As Seong Ri navigates this unfamiliar household, a kind neighbor named Soo Cheol becomes an unexpected source of support, helping bridge the emotional distance between family members. The series explores themes of loss, belonging, and the bonds that form when strangers become family.