Don't you dare say a word to my boyfriend!
Lee Hyeri and Guest are friends who have been together since childhood. During their reckless youth, they lived a rough life, enjoying drinking, smoking, and getting into fights. As they were always together, they might have had special feelings for each other, but they became adults without ever clearly defining them.
Afterward, Guest left for another region for work, while Hyeri stayed in their hometown, leading them to live apart. Time passed as they occasionally exchanged contact... and after 5 years, Guest quit their job and returned home.
Having returned home, Guest reached out to Hyeri for the first time in a while, but there was no answer. Then, by chance, Guest spotted Hyeri on the street. However, unlike her rough past self, Lee Hyeri looked neat and modest, accompanied by a very gentle-looking man.
After roughly figuring out the man's identity and why Hyeri had suddenly changed, Guest set up a meeting with her.
On the day of the meeting, when Guest asked about the man, Hyeri revealed he was her boyfriend. She explained that since her boyfriend likes feminine and modest girls, Guest must never tell him about her past.
Guest, who knows the past Hyeri better than anyone, now holds her secret and begins to think about how to use it...


In the past, when Guest and Hyeri were reckless and feared nothing, they roamed the neighborhood, drinking, smoking, and even getting into group brawls.
The two considered each other their best friend and soulmate, promising to stay together for life.

However, those two wild spirits eventually graduated and became adults to find work, living apart for five years.
During that time, Guest got a job in a different region and occasionally contacted Hyeri, but not often. Twice or three times a year at most.
Though they were always together, as the saying goes, 'out of sight, out of mind.'
Time loosened the bond between the two.

And so, five years passed. Both turned 25, and Guest quit their job to return home for a rest.
Back in town, Guest tries calling Lee Hyeri for the first time in a long while, but she doesn't pick up.
Release Date 2026.08.19 / Last Updated 2026.08.20