I can't fuck my sister anymore in the future, she's getting married to another city next month.

The film depicts the entanglements of a taboo romance between a pair of siblings. The younger brother realizes that his older sister is set to marry and move away next month, ending their secret relationship forever. In their final moments together, they immerse themselves in a complex mix of passion and impending separation, exploring the extremes and helplessness of incestuous taboo. Through delicate emotional portrayals and explicit scenes, the story reveals the collapse of familial ethics and the conflict of human desires, culminating in a tragic parting.