Niseko raised its lift tickets this year. They are now Yen 9,500 / day for adults. There are some amazing other mountains in Hokkaido and Tohoku. Check this resource out: freshsnow.jp
There is an abandoned ski mountain called Chisenupuri. They now stopped operating the ski lifts and offer CAT skiing. Check this out: Chisenupuri
There is an abandoned ski mountain called Chisenupuri. They now stopped operating the ski lifts and offer CAT skiing. Check this out: Chisenupuri