A brain tumour surgery leaves Yao (by Jasper Liu) with anterograde amnesia. As such, his memory `resets` everyday, that he can only recall past information but not new events. Unable to perform the simplest day-to-day tasks on his own, Yao hits rock bottom until meeting Xingyue (by Na Zha). Endless “restarts” of their relationship is sweet yet unbearable, and would the two make this “unforgettable” love happen?