Kagoshima airport started providing a prayer space.
An exclusive prayer space is provided in the third floor of the International terminal as shown below.
http://koj-ab.co.jp/en/terminal-maps/international-terminal.html
Regarding international flights, the “dressing room” can be used as a prayer space when it is not in use.
*Contact the airport counter for details.
Kagoshima Prefecture will host Muslim visitors with a spirit of hospitality.