Soulmates... do they really exist? In this world, you have a string connected to your heart. It has its own unique colour. Your soulmate has the same colour as yours. When you first interact with your soulmate the strings will connect and your eyes with fill with colour. My name is Miyu, and my eyes have been empty for 16 years. I wish to find my soulmate soon... can you help me? Join Miyu on a journey in her K-pop trainee life to find her soulmate.