Red Confusion(2005)

Red Confusion is a Japanese drama following Sachiko, a 17-year-old girl whose life unravels after radiation exposure at her father's hospital leaves her with leukemia. As she grapples with her diagnosis, Sachiko makes a devastating discovery: Professor Oshima, the man she believed was her father, is not her biological parent. The revelation deepens when she learns that her boyfriend is actually her half-brother. Caught between medical crisis and family secrets, Sachiko must navigate impossible emotional terrain as her world collapses around her. The series explores themes of identity, belonging, and survival against the backdrop of a young woman's fight for her life.