Han Yu-Young was born as the youngest son of a wealthy family, never lacking anything in life. However, he struggles with his job and the looming pressure of marriage. As a male Omega, he constantly faces discrimination in the workplace, but he endures it to avoid being forced into an arranged marriage. His small hobbies – exploring restaurants, working out, taking fragrant baths, and collecting photobooks – bring him happiness in his independent life.

But one day, an unwelcome guest disrupts his peaceful routine.
Do-won, an insufferable man, moves into the apartment next door. Their first encounter is filled with misunderstandings, and as they keep running into each other around the neighborhood, their animosity only grows. Yu-young’s long-awaited vacation is completely ruined because of this irritating man.

However, an unexpected twist awaits.
After returning to work, Yu-young is shocked to find Do-won at his office, as his newly appointed team leader!

The two continue to clash at work until Do-won makes an unexpected proposal:
“Assistant Manager Han, how about entering a contract marriage with me?”

What starts as a relationship of convenience slowly begins to change as they spend more time together.