![Split Ends](https://image.tmdb.org/t/p/w185/quVGvnm6bjiVSem2gA1aZUqgSqe.jpg)
“Non-rem sleep” means deep sleep. Are the three mysterious short stories that we broadcast this time a dream? Or is it real? Dreams and reality, reality and unreality … The mysterious bakarhythm world that goes back and forth between them is the “non-rem window.”