Step by Step: Uncut Version (2023)

They are both office romances, which feature a lot of their interactions happening in the office setting. The main couple of both have a Boss/employee relationship.

The main difference is that Step By Step is Thai, while The New Employee is Korean.

These are both Thai office romance BLs, where the main couple have a Boss/employee relationship. They both feature a lot of interactions happening in the office setting as well as showing a lot of their work projects.
They both have a boss who initially appears cold/scary but eventually shows a softer side.

Both shows feature an office romance, in which the main couple have a Boss/employee relationship. In both shows the boss is the son of the company owner.

The main difference is that Poongduck 304 heavily features the main leads living together as part of their conflict, as well as being a Korean BL compared to Step by Step which is Thai.