Legend of the Blue Sea

Recently, I have been chasing a Korean drama - "The Legend of the Blue Sea", but there is no decent movie review on the Internet. Is it because everyone thinks this drama is not good or has nothing to analyze in depth? There's no way to fill my empty brain hole, I'm sad, so I'd better do it myself...

The first episode is a small novel. Hostess: Love you across a century and across species. Male lead: You are the most precious existence in my eyes. The male protagonist takes the female protagonist to the mall to buy clothes, helps the female protagonist put on green shoes, feeds the female...