Yoo Yong Ha (유용하) is a South Korean singer and rapper under OUI Entertainment. He is a member of project group 1THE9 . Filmography Reality shows Under Nineteen (MBC, 2018-2019) - contestant Gallery XIX (1)XIX (2)Blah BlahThis article is a stub. You can help Kpop Wiki by expanding it. Retrieved from "https://kpop.fandom.com/wiki/Yoo_Yong_Ha?oldid=143356" Categories: 1999 births January births Person article stubs Rappers Male rappers OUI Entertainment 1THE9 Under Nineteen Yoo Yong Ha Community content is available under CC-BY-SA unless otherwise noted.