Question: What is the name of the South Korean model and actor, who starred in Who Are You: School 2015?

full_context: Document 1: Yoo Min-kyu: Yoo Min-kyu (born September 18, 1987) is a South Korean actor. Yoo began working as a runway and magazine model in 2006. He then joined and won the audition competition "Flower Boy Casting: Oh! Boy" in 2011, which led to his acting debut in the television series "Shut Up Flower Boy Band" in 2012. In 2014, Yoo played leading roles in Kim Jho Gwangsoo's indie film "One Night" (part of the omnibus "One Night Only"), and another cable series "Be Arrogant".
Document 2: Scholar Who Walks the Night: Scholar Who Walks the Night () is a 2015 South Korean television series based on the manhwa of the same name written by Jo Joo-hee and illustrated by Han Seung-hee. Starring Lee Joon-gi, Shim Chang-min, Lee Soo-hyuk, Lee Yu-bi and Kim So-eun, it aired on MBC from July 8 to September 10, 2015 on Wednesdays and Thursdays at 21:55 for 20 episodes.
Document 3: Yeo Jin-goo: Yeo Jin-goo (born August 13, 1997) is a South Korean actor. Yeo began his career as child actor, debuting in the film "Sad Movie" (2005). Nicknamed "Nation's Little Brother", he went on to play the younger version of the lead roles in movies and television dramas such as "A Frozen Flower" (2008), "Giant" (2010), "Moon Embracing the Sun" (2012), and "Missing You" (2012). He is known for playing the title character in action thriller "" (2013), for which he won Best New Actor at the Blue Dragon Film Awards.
Document 4: High Society (2015 TV series): High Society () is a 2015 South Korean television series starring Uee, Sung Joon, Park Hyung-sik and Lim Ji-yeon. It aired on SBS from June 8 to July 28, 2015 on Mondays and Tuesdays at 21:55 for 16 episodes.
Document 5: Kim So-hyun: Kim So-hyun (; born June 4, 1999), is a South Korean actress. She began her career as a child actress in 2006 and initially gained public attention for playing a villainous young queen-to-be in "Moon Embracing the Sun" (2012) and a girl who falls into tragedy in "Missing You" (2013). She took on her first leading role in teen drama "" (2015) and since then, has starred in horror comedy "Hey Ghost, Let's Fight" (2016) and historical melodrama "" (2017).
Document 6: Who Are You: School 2015: Who Are You: School 2015 (Hangul: 후아유: 학교 2015 ; RR: "Huayu: Hakgyo 2015 " ) is a South Korean television series, starring Kim So-hyun, Nam Joo-hyuk, and Yook Sung-jae. It aired on KBS2 from April 27 to June 16, 2015 every Monday and Tuesday at 21:55 KST for 16 episodes. It is the sixth installment of KBS's "School" series which premiered in 1999.
Document 7: Lee Hyun-woo (actor): Lee Hyun-woo (born March 23, 1993) is a South Korean actor and singer. He began his career as a child actor when he was nine, and later appeared in the television series "The Return of Iljimae" (2009) and "Queen Seondeok" (2009). He was also featured in "Master of Study" (2010) and "To the Beautiful You" (2012). Lee gained recognition with his role as a North Korean spy in the 2013 film "Secretly, Greatly" as well as a genius hacker in 2014's "The Con Artists". In 2016, he landed his first leading role in KBS2's "Moorim School". In 2017, he starred in his second leading role in tvN's "The Liar and His Lover", alongside Red Velvet's Joy
Document 8: Nam Woo-hyun: Nam Woo-hyun (Hangul: 남우현 ; Hanja: 南優賢 ; born February 8, 1991), commonly known by his mononym Woohyun, is a South Korean singer and actor with the boy band Infinite. In 2016 he released a solo album.
Document 9: Kim Woo-bin: Kim Woo-bin (born Kim Hyun-joong on July 16, 1989) is a South Korean model and actor. He began his career as a runway model and made his acting debut in the television drama "White Christmas". He subsequently gained attention in "A Gentleman's Dignity" (2012), and made his breakthrough with "School 2013" (2012-2013) and "The Heirs" (2013). Kim later starred in box office hits "" (2013), "The Con Artists" (2014) and "Twenty" (2015). In 2016, he took on his first leading role on television in "Uncontrollably Fond".
Document 10: Nam Ji-hyun (actress): Nam Ji-hyun (; born September 17, 1995) is a South Korean actress.
Document 11: Yook Sung-jae: Yook Sung-jae (; born (1995--) 2, 1995 ) is a South Korean singer, actor and host. He is a member of the boy group BtoB and its sub-group, BtoB Blue. Aside from his group's activities, Yook is known for acting in television dramas, "" (2015), "" (2015) and "" (2016).
Document 12: Hi! School: Love On: Hi! School: Love On (Korean: 하이스쿨: 러브온 ) is a 2014 South Korean television series starring Kim Sae-ron, Nam Woo-hyun and Lee Sung-yeol of the band Infinite. It aired on KBS2 from July 11 to December 19, 2014 on Fridays at 20:55 for 20 episodes.
Document 13: Hyuk (singer): Han Sang-hyuk (Hangul: 한상혁 born July 5, 1995), most often credited as Hyuk (Hangul: 혁 ), is a South Korean singer and actor, signed under Jellyfish Entertainment. Hyuk debuted as a member of the South Korean boy group VIXX in May 2012, and began his acting career in 2016 in the comedy-action film "Chasing" as Han Won-tae.
Document 14: Five Enough: Five Enough () is a 2016 South Korea television series starring Ahn Jae-wook, So Yoo-jin, Shim Hyung-tak, Shim Yi-young, Im Soo-hyang, Shin Hye-sun, Sung Hoon and Ahn Woo-yeon. It airs on KBS2 every Saturday and Sunday from February 20, 2016 at 19:55.
Document 15: Nam Joo-hyuk: Nam Joo-hyuk (born February 22, 1994) is a South Korean model and actor. He has starred in "" (2015), "Weightlifting Fairy Kim Bok-joo" (2016) and "Bride of the Water God" (2017).
ground_truth: Nam Joo-hyuk