Min Seora is second daughter of an elite family. Seora studies abroad and returns to Chrysopeleia Private school in the Ghoestan Kingdom to find out the reason behind her sister death a few months ago. Seora’s sister, who had been looking after and caring for her since she was little, was the person she loved the most, and she was very hurt that she left him without any reason, and she came to find out “WHY?”.