Caddie:  

Normally there's 1 caddie per each group. 

Lunch Breaks:

Golf courses in Japan do not allow "playing through" without a lunch break on throughout the year except playing in Hokkaido and Okinawa. 

Cart:

Most golf courses in Japan provide a cart shared with 5 people including caddie per group. When self-play, players need to manage the cart with remote controller, sometime without controller.

Walk-play with a caddie is required to play at some prestige golf courses which still has not introduced golf carts.

Rental Clubs/Shoes: 

Shoes and clubs are available for rent. The price for clubs vary depending on golf course.

Tips:

Tips for caddie is not necessary in Japan, however, tips will be surely appreciated.

Club Delivery :

It's possible to ship your clubs directly to/from the clubhouse at every course in Japan. S

* Require to send your clubs at least two or three days before the day you will play.