Kim Soo-mi x Jung Myung-Ho x Joy, three gene maulbun Bungeo-pangs (The Return of Superman') on August 29, 2021 Bungeo-ppang Chain Reaction Grandma's Boy Joy Jung Myung-Ho Kim Soo-mi Korea Seo Hyo-rim Superman The Cost The Return of Superman +
"Yoo Jae-Suk," a "Director of the Brew," is embarrassed by Interviewer Confessions ('What do you do when you play') on August 27, 2021 Chain Reaction Confessions Hangout with Yoo Super real Yoo Jae-Suk +
Jo Se-ho "Lives to 99.8kg 70kg, lowest weight ever" (Radio Star) on July 26, 2021 Chain Reaction Jo Se-ho Jung Woo-sung Kim Gu Kim Nam-joo Kim Seong-il mbc Radio Star TIKI-TAKA +
Point of Omniscient Interfere' Yang Se-hyeong, ideal type Uhm Ji-won met "Super real Celebrity as you see" on July 24, 2021 Chain Reaction Point of Omniscient Interfere Super real Uhm Ji-won Yang Se-hyeong +
Running Man' Haha X Yoo Jae-Suk, Infinite Challenge' Memories Recall to Laugh on May 24, 2021 Chain Reaction Haha Infinite Challenge Ji Suk-jin Lee Yong-jin Race Running Man Song Ji-hyo Sung Si-kyung Yoo Jae-Suk +
Imitation' Park Kyung-lim SEK appearance "Flavourful Activity" on May 15, 2021 appearance Chain Reaction Flavour Hot Summer Days Imitation Park Kyung-lim SEK SteelSeries +
Yang Se-chan, self-interested in Jin He-In, "I'm Up to Here" after Lunch box date (Running Man) on April 18, 2021 Chain Reaction Choices Jeong He-In Race Running Man Yang Se-chan Yoo Jae-Suk +
"Be a Bad Police" on Lee Seung-gi, Lee Kyung-kyu's Reasonable Call on April 12, 2021 All The Butlers Bad Police Chain Reaction Kim Dong-Hyun Lee Kyung-kyu Lee Seung-gi sbs Yang Se-hyeong +
"Life is Chain Reaction" entertainment The Godfather Lee Kyung-kyu GOTTASADAE (Sung Yu-ri) (All The Butlers') on April 12, 2021 All The Butlers Chain Reaction GOTTASADAE Kim Dong-Hyun Lee Kyung-kyu Lee Seung-gi Sung Yu-ri The Godfather Yang Se-hyeong +
Lee Kyung-kyu "Life Is Chain Reaction"...Lee Seung-gi Cha Eun-woo, Admiration for entertainment Advice (All The Butlers) on April 12, 2021 All The Butlers Cha Eun-woo Chain Reaction Jung Eun-woo Kim Dong-Hyun Lee Kyung-kyu Lee Seung-gi Shin Sung-rok Sung Yu-ri Yang Se-hyeong +