Jones won his 14th Japan Tour title when winning by one shot over Yuta Ikeda and by two over 2015 champion Ryo Ishikawa 12 months ago.
Other Australians in the field include the returning Brad Kennedy who has not played a Japan Tour event since early July after being sidelined by a recurring shoulder injury. That he is back and ready to play suggests one of the more successful foreigners on the Japan Tour in recent times is ready to go.
Kennedy has been inside the top five in three of his four Japan Tour starts in 2017 and on top of that was his near miss at the New Zealand Open where he lost a playoff to New Zealander Michael Hendry.
Hendry is not playing this week but Kennedy and Jones will be joined by fellow Australians Kurt Barnes, who won this event in 2011, Adam Bland, Matthew Griffin, David Bransdon and Aaron Townsend.