Personally, I wouldn't ask friends or family to read, praise, buy, push, or help finance my book or other personal project because I think people tend to hate that. Also, they're not your real target market so imo it's not likely to lead to much success anyway.
I like unionrdr's idea and I think that's more the way it works. He's found something to contribute to that the target market for his book wants, and some of them will go on to buy his book. He gets buyers because he brings something to the table that they want rather than only pushing what he wants (to sell his book). Most of us aren't that interested in what other people want, as I'm sure you have noticed.
I see your book is a short story collection. First, they're not in high demand, as you probably realize. So, you have to find your way to the ones who do like them. Have any of the stories been previously published? Every time you get a piece published somewhere else, those readers can click on the link in your bio and buy your book. Those readers already like and read short stories. The story itself is an ad for your book.
So, I would submit stories to other publications. Put your book link in your signature line here and anywhere else you hang out online. Also, consider making one of the stories free on Kindle to hopefully attract more short story readers to buy the whole book.
And what about the other possible target markets for your book? The collection is about Korean Americans. Who would be especially interested in that topic? And how can you reach those people? Is there a Korean American forum you can participate in, in a meaningful way, and again, include a link to your book in the signature line? Anything else? If your stories are set in a particular Californian region, there's another starting place to consider when thinking of ways to attract readers. Imo, it has to be "real" to be very effective. I wouldn't bother spending a lot of time if I wasn't truly interested in any of these things in the first place. If not, your best bet may be to just leave it there and get on to writing other things. Those other things will also serve as ads for this book if they're under the same name.
Also, you can offer free copies and request reviews, and try dropping your price, and see how that goes. Good luck.