I Have No Idea

四 Four Girls Break into the Sky A Pillar of Clear Sky 青 Youth Ends Here A Pillar of Clear Sky 寻 Seek A Pillar of Clear Sky 思 Siyi A Pillar of Clear Sky 美 Sweet Dream, That's All A Pillar of Clear Sky 一 One Person, Two People A Pillar of Clear Sky 依 Legend of Yiyue A Pillar of Clear Sky 我 My Boyfriends A Pillar of Clear Sky