Jina suffers from severe insomnia, finding her only relief by listening to the ASMR videos of a popular YouTuber known as "NA." However, her habit isn't innocent; Jina has developed a deeply intimate and sexual ritual, only able to fall asleep after masturbating to NA's adults-only alternative ASMR content.

The situation takes a disturbing turn when Jina realizes "NA" is identical in every way—the voice, the speaking pattern, even a distinct beauty mark—to her high school classmate, Heo Jina. This is the very person responsible for the trauma that caused Jina’s insomnia in the first place, dredging up painful memories of betrayal and isolation.

Fate intervenes when Jina's company invites several speakers for a "mind healing" workshop, and the headlining guest is none other than the hottest YouTuber around: NA. When Jina finally sees her face again, it confirms her worst fears: it really is Heo Jina.

How can the person who stole the one Jina loved back in school—the person who ruined her life—now be the one she relies on nightly for sexual comfort and sleep? This intense, mature drama explores fixation, trauma, and the twisted lines between hatred and desire.

/ Alternatives: 머머 (Korean)