Seoyun is an online influencer. After a picture of him cross-dressing went viral and was passed around his school, Seoyun had to quit school, leave his family, and go into hiding on his own. Thankfully, with the image going viral, he was able to rebound into an online career under the moniker Mr. Puppy. With his whole world revolving around the internet, Mr. Puppy doesn’t have to leave his home for much, which he is fine with. Yet, as the days go on, Mr. Puppy’s loneliness also grows.
Mr. Puppy isn’t lonely for long, though. One day, he receives an inappropriate DM from a medical student named Yeonwoo. Yeonwoo likes cute things, and Mr. Puppy fits the bill. Yeonwoo also fits Mr. Puppy’s preferences, and they start an online relationship with Yeonwoo as a master and Mr. Puppy as his pet. While this satisfies for a time, it isn’t long before they crave more. Can their relationship survive the transition from an online fling to a physical one? And can love grow from a master-pet relationship?