Rottyful Sky (로티플스카이), formerly known as Hanul (하늘) was a South Korean singer-songwriter and producer under RS Company. She debuted with studio album, Voice of Purity on August 26, 2011. She was a member of the hip-hop dance group Roo'ra from 2006-2007. She passed away on October 8, 2013 after struggling with brain cancer.
Rottyful Sky was diagnosed with brain cancer in 2012 and went out of the public eye to receive treatment. She passed away on October 8, 2013.