Travel from Tokyo to Ainokura

Good evening,
Could you please let me know what is the fastest way to get from Tokyo to Ainokura and the next day from Ainokura to Shirakawago in the morning and from there to Takayama in the afternoon? and how much time would take each leg?
Thank you and kind regards,
Sandra

https://www.japan-guide.com/e/e5953.html use the drop-down menu to select to/from location.
Ainokura bus timetable http://www.kaetsunou.co.jp/ol/regular/timetable5.pdf