I took a train from Ikebukuro Station to Kutchan Station and escaped to Hokkaido, where there was little pollen. I took the Gran Class from Omiya Station to Shin-Hakodate Hokuto and then the Limited Express Hokuto from Hakodate to Oshamambe. After eating crab rice at Oshamambe, I escaped to Kutchan Station.
I stayed overnight in Hakodate to pick up something I had forgotten on the way, then moved from Hakodate to Oshamambe by express Hokuto, then from Oshamambe to Kutchan by local train. The Gran Class is a little more expensive, but the attentiveness of the attendants made the long ride very comfortable. And I will continue snowboarding in Niseko for a while.
I forgot something in Hakodate this time, so I took this route to Niseko, and as a result, I could have a fun trip.