If you want the full version and license for commercial use,
you can purchase here :

https://fontkong.com/product/japan-ramenten/

File include : 

1. JapanRamenten.otf
2. JapanRamenten.ttf
3. JapanRamenten.woff
4. JapanRamentenDemo.otf
5. JapanRamentenDemo.ttf
6. JapanRamentenDemo.woff