Question:  Shownu, Kihyun, Hyungwon, Wonho, Minhyuk, and I.M. and what other South Korean comprise a group created in 2015?
Sentence (from "Monsta X"): Monsta X (Hangul: 몬스타엑스; often stylized as MONSTA X) is a South Korean boy group formed by Starship Entertainment through the survival show "No.Mercy" on Mnet in 2015.
Relevant evidence: Yes