S1·E10 Episode 10

After waking up from surgery, Ru Na is thrown into confusion when everyone around her begins calling her Ru Bi. As she tries to process what is happening, she learns that Ru Bi is in a coma. Seeing Gyeong Min sitting faithfully at Ru Bi's side, refusing to leave, something stirs inside Ru Na. A dark temptation begins to grow within her, one she finds difficult to push away.