It reminds me more of the style of an Afghan or European weapon than a Korean one. Afghan examples like these have pommels that jut out in the direction of the blade's cutting edge, similar to European sabres or earlier German langes messer, and can be quite short. The text looks central or south-east Asian but perhaps ask /r/translator/ whether they can identify it.

Traditional Korean swords, as with Chinese and Japanese ones, tend also not to have developed closed hand guards, even after contact with the west, and additionally their cross-guards are usually circular and - to greatly varying degrees - flat. When ornate they usually have a cresent design of some kind. Bar cross-guards where they do exist tend to emulate the Chinese dao with rotational symmetry, such as this Korean example.

While by the 19th century European sabres had developed complex hand guards rather than the single bar of earlier centuries, when Asian militaries adopted western methods of armament and training, Korea along with other nations did adopt their own versions of sabres, but these generally were used in limited capacity by officers only. Most that I have seen use a single bar hand-guard, but their blades are generally very influenced by the European sabre, which your small sword is not, and appears too crude to identify whether it is supposed to be a sword, dagger, or what style it may be based on.

This is a very tl;dr way of saying that I suspect this is a modern decorative creation based either on a domestic interpretation of a foreign blade, or a mixture of influences. It would make more sense for them to sell a replica either of a traditional Asian or European sword, which makes the design curious.