The protagonists are Kim and Jeff, who plays the role of Young Master Falling in Love with Me.
"I understand you as yourself"
"I love you like my dream"
There is a private setting, and the timeline is several years after the existing plot.
Jeff, who was drunk at the World Tour celebration party, accidentally fell into the world of Black Young Master, and the story between him and Kim in the original world.
Intention: Adapt to the environment and coexist harmoniously with the new world