I've always had a soft side for love at first sight, love stories. In this one the mc falls in love with healer girl at first sight. The romance progress might seem slow to some, but you'll notice that she does show hints as the story goes on. Since this is a novel is centered around the romance between the two of them, you can't honestly expect her to fall in love with him in just like several chapters. To be honest, I enjoyed reading the development between the two rather than stories whereby the girls fall in love with the MC within just a few chapters.
Besides, it's an enjoyable read, light and fluffy love. Give it a try if you're looking for an escape from all those novels where all the girls throw themselves at the MC for no particular reason.