In a world where an app alerts people if someone in the vicinity likes them, Kim Jojo experiences young love while coping with personal adversities. Z. Hera, Shin Seung-ho, Ko Min-si, Jung Ga-ram, Song Sun-mi, Lee Jae-eung, Song Kang, Kim So-hyun, So-Hyun Kim Added on Netflix 2019-08-23. Youtube Trailer