Question:  Shownu, Kihyun, Hyungwon, Wonho, Minhyuk, and I.M. and what other South Korean comprise a group created in 2015?
Context: Chocolat (Hangul: 쇼콜라, "Syokolla"), commonly stylized as ChoColat, was a South Korean girl group created by Paramount Music in 2011.  The group's name stems from the idea that each member is reminiscent of a different type of chocolate.  The name of the group was initially going to be "Chocolate", but there was already a group with that name, so Paramount Music decided to use the French word "chocolat" instead.  The group consists of mixed race members.  The group became inactive in 2013.  Melanie confirmed in an interview that the group members' contracts had concluded in February 2017 and the group had disbanded. Lee Min-hyuk (; born November 29, 1990), commonly known as Minhyuk or Heota, is a South Korean singer, rapper, songwriter and actor.  He is a member of the South Korean boy group BtoB.  He received multiple supporting roles in television series such as "A New Leaf" and "Sweet, Savage Family". Block B (Korean: ) is a South Korean boy group created by Cho PD in 2011.  The group consists of seven members: Taeil, B-Bomb, Jaehyo, U-Kwon, Park Kyung, Zico and P.O. Wonho Chung (Arabic: ونهو شونغ‎ ‎ , Korean: 정원호 ) is a comedian and television personality, born in Jeddah, Saudi Arabia, and raised in Amman, Jordan, to a South Korean father and Vietnamese mother.  Although raised in an East/Southeast Asian household, Wonho was given an Arab upbringing, acquiring proficiency in five languages, including native Arabic and fluent English. Miss Me?  (stylized as miss me?)  is the second and last extended play (EP) by South Korean girl group I.O.I, a project group created through the 2016 Mnet survival show, "Produce 101", composed of eleven trainees from different entertainment companies that promoted until January 2017 under YMC Entertainment.  It contains five tracks, including the lead single, "Very Very Very" produced by Park Jin-young. Lee Joo-heon (born Lee Ho-joon on October 6, 1994), better known by the mononym Jooheon, is a South Korean rapper and songwriter.  He is a member of South Korean boy group Monsta X, formed during the 2014 Mnet's survival show "No.Mercy". Dal Shabet (Hangul: 달샤벳 , stylized as Dal★Shabet or Dalshabet) is a South Korean girl group created by E-Tribe under Happy Face Entertainment.  The group is currently composed of four members: Serri, Ah Young, Woohee and Subin.  The group debuted on January 3, 2011, with the release of "Supa Dupa Diva". The Shin'a'in (translation: "People of the Plains") are a fictional ethnographic group created by fantasy author Mercedes Lackey.  They comprise roughly half of the descendants of an ancient race, the Kaled'a'in; the other half are the Tale'edras ("Brothers of the Hawk").  They are characterized by their chosen homeland, the Dhorisha Plains, an enormous grassland in the bottom of a great crater, and by their refusal to use magic except as part of the shamanic rituals.  They resemble the Bedouins in lifestyle; they are nomadic, living in tents, and they are predominantly herders and horse-breeders. Chrysalis is the debut extended play by South Korean girl group I.O.I, a special group created through the 2016 Mnet survival show, "Produce 101", composed of eleven trainees from different entertainment companies that will promote for a year under YMC Entertainment.  The album was released digitally on May 4, 2016 and physically on May 9 with the single "Dream Girls" in two versions, a standard edition and a special edition. 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.  The group is composed of seven members: Jooheon, Shownu, Kihyun, Hyungwon, Wonho, Minhyuk, and I.M.
Answer: Lee Joo-heon