Nice Sister-In-Law 4 ending explained

Spoiler summary page for informational search intent.

What happens at the end?

Brother-in-law, I will fill your vacancy now! His younger brother Min-hyeon lives with his older brother Jun-hyeon. Pyeong-seok, who was burdened by living in the same house with his brother-in-law, keeps his eyes on Mi-jeong, the young and sexy wife of his older brother. He even imagines sharing love with his brother-in-law at the sound of a strange moan from the next room. One Sunday, my older brother is away from home in a hurry for work, and the two of them are left alone with a strange feeling...

Why it matters

The ending resolves the main conflict and sets up the emotional takeaway of the story. As the index grows, this block can be auto-generated with more detailed scene-level commentary.

FAQ

Does this page contain spoilers?

Yes. The explanation summarizes major ending events and interpretation.

Where can I find similar endings and themes?

Check the similar movies page for related tone and narrative structure.