Nothing Serious No more serious dates. Woo-ri, 32, and Ja-young, 28, who both dislike being alone but have particular anxieties when it comes to dating, meet through an app. Details Casts Videos Galleries Posters Title Nothing Serious Release Date 2021-11-24 Runtime 01 Hours 35 Minutes Genres Romance Comedy Production Companies CJ Entertainment, 12 journey Production Countries South Korea Jun Jong-seo... Ja-young... Son Suk-ku... Woo-ri... Gong Min-jeung... Sun-bin... Kim Seul-ki... Yu-mi... Bae Yoo-ram... Woo-seong... Kim Jae-hwa... Editor in chief... Im Sung-jae... Macho... Lim Sun-woo... Yeon-hee... Kim Yeong-ok... Grandmother... Kim Kwang-kyu... Father... Lee Hak-ju... Min-seok... Park Jong-hwan... Namkoong Sang-woo... Jang Eui-soo... Trainer... Jang Seo-kyung... Seo-kyung... NOTHING SERIOUS Official Int'l Main Trailer (Trailer) Animated Trailer (Featurette) Official International Teaser Trailer (Teaser) Original Size (2730x1536) Original Size (2688x1512) Original Size (2520x1418) Original Size (2730x1536) Original Size (2940x1654) Original Size (2940x1654) Original Size (2352x1323) Original Size (2646x1489) Original Size (2520x1418) Original Size (1280x720) Original Size (2048x1152) Original Size (2000x3000) Original Size (2000x3000) Original Size (1366x2048) Original Size (2000x3000) Original Size (2000x3000) Original Size (2000x3000) Original Size (1187x1701) Original Size (1187x1701) Original Size (1080x1543) Original Size (1701x2551) Original Size (750x1074) Original Size (1187x1701) Original Size (750x1074) Original Size (750x1074) Original Size (750x1074) Original Size (750x1074) Original Size (2000x3000) Original Size (2000x3000)