"I can't kill him..." Two mafias are head to head fighting for control of the capital city. A suspicious facility helps them both recruit people from all backgrounds. Taehyun will ask for his father's help in finding his missing classmates. WARNING: DARK CONCEPTS, VIOLENCE. Yeongyu Sookai

Soobin is a prince who's always tired, sad for the loss of his mother, the Queen. At the moment he heard one of his servants singing the song his mother used to sing to him, he got surprised when he saw who owned that beautiful voice.