The Undateables Season 1 Episode 20 Episode 20 ( Air Date 2018-06-28 ) Genre Drama, Comedy category. Overview "Hoon-Nam knows about love theoretically, but he rejects falling in love. Jung-Eum wants to fall in love, but, due to her difficult situation, she gives up on finding love. Hoon-Nam and Jung-Eum meet and develop a relationship romantically.".