Seo Yeon Knows the Truth Now - S1.E11

Kang Woo drives Seo Yeon home and gets to encounter Won Seok and Won Jae. Won Seok is suspicious about Kang Woo and Seo Yeon's relationship, and he wants to meet Kang Woo. Won Seok finds out that Kang Woo isn’t gay, and Seo Yeon gets mad about it. Seo Yeon is deeply disappointed with Kang Woo thinking that he asked her out for a joke again.