This drama is one of the types you can just sit, have your coffee and enjoy a few minutes of your time.
The story starts off pretty well. The bland FL is employed in a big company and shows her wonderfully warm personality to all the competitive cold employees, to the point that they all start liking her. In the process, she falls in love with the president, who happens to be cold and has a traumatic past.
We get to see many side characters who are funny and bring light to this drama. There is a minor love triangle, there are minimum adversaries, and the story runs mostly smoothly.
There is a villain involved, but it shows that with persistence you can be a hero and will the heart of the one you love.
The romance is a slow burn and an unrequited love at first, but as the story progresses, the leads start a relationship and help each other, however, it takes a while for them to be a couple :)

Overall, a very pleasant and warm Jdrama. Romance lovers won't be disappointed as well.