Just 1 Day 2021 Mosaic Wong Cho Lam, an urban sketcher suffering from ALS, reunites with Angelfish Charlene Choi, a bank teller and his old primary school classmate, at a school function When his condition worsens, Mosaic asks Angelfish to fulfill his one last wish To be his girlfriend for just one day Over the course of the day, Angelfishs appreciation of this city and of life is reignited