No. It makes little to no sense. There are so many problems standing in your way that there's pretty much 0 chance it'll work.
1) You clearly have no clue how this business works nor the passion. You know what pretty much everyone knows: that getting into professional acting is hard. But you have no idea why. Learning what it takes, what it involves, and what acting really is is essential. You say it's your dream but you haven't really made any effort to achieve it.
2) You have unrealistic expectations and an unrealistic approach. Based on your other question what you really want is to be famous. 99.9999% of actors don't become famous. 99% of actors will never get more than a few minor roles, on minor production including things no one's ever heard of, including theater productions, their entire career. You hope to be an actor for a specific production or another... Again, that's not how it works. You can't choose or even aim to land a certain role on a certain production.
Let me ask you this: Would you be happy if you ended up "nothing but" a theater actor? If your answer is "no", then A)you have a fantasy about what acting really is and that's what you're interested in, B)You don't really love acting, C)You're not capable of pursuing it on a professional level. If that's your answer, acting as a career is not for you at all. Again, you need to be passionate about the CRAFT of acting, every aspect of it. And it sounds like you're more into the fantasy of red carpets, fans, talk shows, money, fame.... That's not what acting as a career is 99% of the time for 99.9999% of actors. Is it really worth it for you to spend the next decade, two three, or more of your life working your *** off for that little chance? Do you have the determination? The stamina? I don't believe you do. After all you're looking for shortcuts.
3) Do you have a Korean citizenship or the proper work permits? If not, then you can't work in Korea, that's illegal. You can audition, but if you get the role you cannot take it.
4) If you cannot work there, how will you be able to support yourself? 99.9999% of actors don't support themselves by acting alone, and for the little % that does it's only temporarily till they need to find their next acting job, which may or may never come. Do you have a job waiting for you there? A stable one? One that's also flexible enough for you to take off in the middle of the day to go to auditions, rehearsals, classes, readings, filming, etc.? That's why there's a lot of waiters/actors in LA, that's the kind of job that will allow you that. But you can't support yourself by waiting table and (if you're lucky, once in a while) acting. If you plan on landing with money in your pocket, do you have a few tens of thousands for the first couple of years of staying there? Plus money for a top-level acting school, vocal and dancing lessons, etc.? Just pursuing an acting career is extremely expensive. Do you have the money? Even if you do, just getting your first acting job, which will most likely be a small role on a small production and will not pay much, will take about a decade to get.
5) Professional auditions are not open to the general public. You need an agent.When casting for a specific production starts, a casting director is hired. The casting director approaches agents they know and trust to send actors to audition for specific roles they're looking to fill. In order to be signed by an agent, you need a strong resume (not a portfolio!). That resume includes about a decade of top-quality training and low-level experience, in addition to special skills you studied like dancing and singing. That's your starting point. And that you can do where you are now. You don't move to LA either before you have everything set, including everything I said above.
6) Korea has a smaller industry, but that also means there's fewer roles to fill, less jobs. It balances out.
7) It's true that you will stand out in Korea more, as a Caucasian. But that's not necessarily a good thing. Because, to go back to the casting director paragraph, productions look for specific roles to fill. The chances that they're gonna look for enough jobs for a "Caucasian female your age range, looks, skills, etc." are very very small.
8) Foreign actors make it big in their own country first. Then they need a good agent with connections to the right people in LA. Instead of taking a shortcut you'd be taking the longer way.
I'm sure I'm forgetting more problems, but aren't these enough?
Why don't you start by actually work on your craft? Why don't you get into some local acting classes, something low key just to get a sense of it? Find out A)what acting REALLY is, B)if you're even good at it, C)if you're even capable of pursuing it on a professional level (including physically, mentally, and financially!).
In addition, learn the business side of acting, learn what's involved and what your job actually is as the product you need to sell. The reality is VERY different from what people usually imagine. Don't pursue a fantasy. There's a very good chance it's not for you at all, it's not for most people.
If it for you (if you're in this for ACTING, because you NEED to ACT, not because you want the fantasy), at that point pursue acting in the US. Forget Korea. Apply to a top-quality acting school (in the big city, where you live, doesn't have to be LA) and start working on that resume (including getting low-level experience in the form of local student films, indies, community theater, etc. and including vocal and dancing lessons). In 7-10 years, once you have a strong resume under your belt, think about moving to LA. Continue gaining training and experience till someone you've worked with and impressed (like a director, a producer, an acting teacher, or even a fellow actor) will be willing to refer you to an agent. THEN you will be able to start taking real auditions and actually be part of that harsh competition. And most importantly, adopt a realistic and mature approach. Don't do this for the wrong reasons, it's never going to work.
Needless to say, if you can't do what it takes, don't bother. Act as a hobby, but don't waste your time on trying to achieve professional acting. There's a difference between a dream and a goal. Dream is the fantasy. For a goal you take the necessary and realistic steps. Which is it?
Sorry to sound harsh, but it's important that you understand the realities of what you supposedly dream about.