Hi Shiro-san! Thank you for your inquiry. If you're not in a hurry, it will take approximately 5hrs to view depending on the crowd level & also including approx. 20 mins walk from JR Himeji Station to the castle. It is a 6-story structure including the basement and it's huge with an impressive sight to explore the gardens other exciting views inside. The castle has a lot more to offer. I hope you enjoy your visit!
I visited Himeji Castle and I agree that it is really fascinating. Recently in college we were also asked to write about the place we visited and we were most impressed and I chose it. I used the help of personal statement services , as my writing skills are quite low, and they did it according to my sketches)