Shinkansen Hello Kitty from Osaka to Himeji Castle

If you have a JR Pass, the Hello Kitty Shinkansen is included! Regional train passes also cover the area where the Hello Kitty Shinkansen runs. Examples include but are not limited to various Kansai area passes, Hiroshima and Okayama area passes, Sanyo area passes, and the JR West All Area Pass.

Refer to https://www.jrailpass.com/blog/hello-...
You will able to find the timetable of the route. It only operates once a day, once you miss it you have to wait for another day!
Get the train number and you can reserve seat from JR official website or JR counter.

Notes: If you wish to sit on the 2 cars with cute Hello Kitty design, these cars are unreserved seat, so you have to queue early for the train to ensure you able to get the seat. Else, just like me to reserve the seat but without cute design in the car (BTW, we do not have much time on our seat)