The Akari-based Tokyo-based group Akari will host Europositions 2019 and 2020 in the city of Akari.
The group will take part in both competitions in 2018.
The two venues will host the final event of the 2018 Eurovision Song Contest in 2019, while the 2019 event will take place in 2020.
The 2019 event is due to be held in March 2019.
The Eurovision 2019 ceremony is set to take place on Saturday, May 20, 2019.