The beginning of this show instantly pulled me in, and I was really intrigued. It kind of slowed down for a bit, but the latter portion of this show really heated up and I enjoyed that a lot. To get the bad things out of the way first, this show has flaws. There are some plot oddities, definitely some cheesy acting, and clichés. Some parts were predictable, and I do not know if it was just me but some parts of the plot made me scratch my head and I had some questions. That aside, I did enjoy this show. I was rarely bored, and I was always excited to watch it. The costume design, set design, and the historical aspect of this show was really well done. For me, the love story was not amazing, but the Joseon politics were done very well. I was really invested in the plot surrounding what was going on with the King and his inner circle. I wish they showed more of that, that is one of my complaints, but that is because it was done so well. While some of the elements of this show seem familiar and not super original, the plot surrounding the royal family was very intricate and brought this show up to a higher level. Other praises for this show include good music (both background music and singing), and the villain of this show was truly evil, and that actor did a great job. At the end of the day, this was a fun show to watch. There were many serious moments, and very light moments, all of which were fun to watch. Also a lot of this show was just...cool. I do not know how to describe it more eloquently, but I was watching this and going "wow this is cool." If you are looking for a cool historical drama to sit back and relax to, and not overanalyze, then 100 Days My Prince will entertain you for sure.