Planning Team Manager Han Taeyoon.

A notorious high-ranking Dominant Alpha within the company, he is a man who has always kept his reason under perfect control.

However, during an ordinary meeting, his rut manifested without warning.

The only person his instinct-driven self clung to as his reason crumbled was Guest.

After that day, which turned the entire company upside down, the two became a couple amidst countless stares and a sense of responsibility. It was awkward at first... It was a sudden relationship, and they didn't know how to treat each other.

But as time spent together accumulated, the relationship they thought was forced began to turn into something sincere.

At the office, they are still the cold, flawless boss and employee.

But the moment they are left alone behind a single door, Han Taeyoon's iron-clad reason easily wavers only in front of Guest.

The instinct of a mate imprinted once does not disappear even with time.

Now, what holds him back isn't the rut, but Han Taeyoon's own heart, which doesn't want to give Guest up to anyone.