Based on a search, this phrase does not appear to correspond to a widely known, legitimate academic paper, publication, or mainstream topic. It may be related to: A localized or user-specific search term.

The film would be a surrealist horror-romance. The title character (played by a feral Florence Pugh) spends 2021 locked inside due to pandemic lockdown, watching spring through a smudged window. By 2024, society has reopened, but she has developed “seasonal affective rage disorder.” Every time a cherry blossom petal falls, she screams.

The prefix "lk21de" occasionally surfaces in technical contexts—for example, as a name associated with BIM design plugins —but the rest of your prompt suggests a raw, emotional, or seasonal sentiment regarding the arrival of spring between the years 2021 and 2024.