Thinking about going to Japan for 2 weeks to ski at the end of Jan 2027 and beginning of Feb.

Is two weeks too short to ski Niseko and Nagano area?

I was thinking of flying into Tokyo, spending 1-2 nights there. Take the high speed train to Nagano. Rent a car, get a hotel.

Ski for 3-4 days at different resorts. Drive to mmj marimoto airport and fly to CTS airport. Bus to hotel near niseko. Ski for 4 days, then bus back to CTS. Fly to Narita, then fly home.

Just wondering if that's all too much. A lot of driving and riding buses.

Anyone with some experience comment? Better itinerary?