Young Serena sought revenge for her sister, Maya, who had been bullied to death by chaebol scions Julian and Tristan. Feigning innocence, she maneuvered between the two brothers. She deliberately provoked and enticed them, pitting them against each other and inciting them into a brutal struggle of both business and violence. But when both were grievously wounded and Tristan lay dead, Serena discovered that everything had been under Julian's control all along. Julian had long seen through her machinations, imprisoning her in a stark white villa and confining the avenger with his pathological possessiveness. Her meticulously planned game of revenge ultimately transformed her into a caged bird, forever unable to escape.