When she was an innocent child, she encountered a family tragedy, and a will led her into a different world. . . Twelve years later, she was admitted to Kyung Hee University and went to the same school as her childhood sweetheart brother; but after meeting him by chance, what earth-shaking changes would happen to her world? Fate did not seem to give her a chance. Another change in her family forced her to give up her studies and enter this chaotic and cruel society in advance. But behind the two changes, the same person was controlling everything... In her emotional disputes, who is her real prince charming in the end? Can she survive this catastrophe?