I'm really looking forward to the next episode!

While tracing the surgical method used to treat Gye Su-jeong, the medical team at Guseo University Hospital discovered records from the past at the Cubanacan University Hospital in Cuba. The records read, “We had hoped for a complete cure for a patient deemed inoperable, but he died two months after surgery. Cause of death unknown. The surgeon's name is unknown, but the alias written on the chart is... Doctor X.” Gye Su-jeong was spotted in a photograph within those records, delivering a massive shock to viewers.