Someday or One Day Season 1 Episode 3 Since Losing You, My World Can't Move Forward ( Air Date 2019-12-01 ) Genre Mystery, Sci-Fi & Fantasy, Drama category. Overview "Going to the past year, 17-year-old Chen Yun Ru meets her school friends Li Zi Wei and Mo Jun-Jie. Back to the present, Huang Yu Xuan is disappointed to find out that the man in the photo is not her boyfriend.".