Question: What day of the week does a South Korean television series starring a German-South Korean actress aired on?

Context paragraphs:
Yoon So-hee: Yoon So-hee (; born May 7, 1993) is a German-South Korean actress.

Woman of Dignity: Woman of Dignity () is a South Korean television series starring Kim Hee-sun, Kim Sun-ah, Jung Sang-hoon with Lee Tae-im and Lee Ki-woo.  The series aired on cable network JTBC on Fridays and Saturdays at 23:00 (KST) from June 16, 2017. .  It became one of the highest rated Korean dramas in cable television history.

The Good Wife (South Korean TV series): The Good Wife () is a South Korean television series starring Jeon Do-yeon, Yoo Ji-tae and Yoon Kye-sang.  It is a Korean drama remake of the American television series of the same title which aired on CBS from 2009 to 2016.  It replaced "Dear My Friends" and it broadcast on the cable network tvN on Fridays and Saturdays at 20:30 (KST) for 16 episodes from July 8 to August 27, 2016.

Sunmin: Sunmin (Hangul: 선민, "Katakana": ソンミン, born August 4, 1987) is a South Korean singer who speaks and sings in Korean, Japanese, and English.  She debuted in 2006, with the single "Keep Holding You," a collaboration with the Japanese R&B singer Toshinobu Kubota.  Her career was initially focused on the Japanese market, but her work became focused in South Korea from 2009 to 2010.  She also contributed to original soundtracks of South Korean television series "Master of Study" and "Gloria (2010 TV series)".  In 2010 to 2011, she was in the main South Korean musical production of "Jekyll & Hyde" as Lucy.  In 2012 to 2013, she reprised her role as Lucy in the South Korean national tour.  In spring 2013, Sunmin played Josephine in the South Korean production of "Arsène Lupin", the musical.

Infinite Challenge: Infinite Challenge (; abbreviated as 무도 "Mudo") is a South Korean television entertainment program, distributed and syndicated by MBC.  As of January 2013, it had the largest market share for its timeslot; with between 13 and 17 percent of Korean television viewers watching "Infinite Challenge" every Saturday night.  making it the most-watched free-to-air television program on Saturday evenings, and the most viewed non-drama program in South Korea every week (excluding special sporting events, since November 2006, with the exception of January 2009, April and May 2010).  It has kept the same scheduled time, since first airing in 2005.  Since 2009, it lasts for roughly 75 minutes, excluding ten minutes of advertising.  Episodes are also frequently rerun on several Korean cable broadcasting channels.  Since February 19, 2011 (episode 237), the program has been aired in high-definition.  "Infinite Challenge" has been called "the nation's variety show" and "Korea's real first variety" for having been successful for over ten years.

Let's Eat (TV series): Let's Eat () is a South Korean television series starring Lee Soo-kyung, Yoon Doo-joon, Shim Hyung-tak and Yoon So-hee.  It aired on tvN from November 28, 2013 to March 13, 2014 on Thursdays at 23:00 for 16 episodes.  The series is about four single people living in one apartment complex who are brought together by their love of food.

Our Gap-soon: Our Gap-soon () is a 2016–2017 South Korean television series starring Kim So-eun and Song Jae-rim.  This is the first time that a virtual couple from MBC's "We Got Married" co-stars as main cast in a serial drama on a national Korean television network.  It aired on SBS every Saturdays to Sundays at 20:45 (KST) from August 27 to October 30, 2016, and then 2 episodes every Saturdays from November 5, 2016 to April 8, 2017.  This change generated a rating increase that led to an 11-episode extension, making the series end with 61 episodes.

The Second Last Love: The Second Last Love () is a South Korean television series starring Kim Hee-ae, Ji Jin-hee and Kwak Si-yang.  It is a Korean drama remake of the Japanese television drama series "Saigo Kara Nibanme no Koi" which aired on Fuji TV from 2012 to 2014.  It replaced "Beautiful Gong Shim" and aired on SBS on Saturdays and Sundays at 22:00 (KST) for 16 episodes from July 30 to October 16, 2016.

Yoo Da-in: Yoo Da-in (born Ma Young-seon on February 9, 1984) is a South Korean actress.  She is best known for her nuanced performance in the critically acclaimed indie film "Re-encounter", her first leading role.  In 2016, she played a supporting role in South Korean television series "Doctor Crush".

Happy Together (1999 TV series): Happy Together () is a 1999 South Korean television series starring Lee Byung-hun, Song Seung-heon, Kim Ha-neul, Jo Min-su, and Jun Ji-hyun It aired on SBS from June 16 to August 5, 1999 on Wednesdays and Thursdays at 21:55 for 16 episodes.  Starring young actors who would go on to become Korean TV and film stars, the hit drama revolves around five children who were separated at the death of their parents, and the love, conflicts, and reconciliation that these siblings go through when they meet again as adults.

Supporting paragraphs: Let's Eat (TV series) Yoon So-hee
Answer: Thursdays