The person in distress entered the mountain on mountain skis from the last stop of the lift at the 7th station of Kurodake around 10:00 a.m., but did not descend even after 1:00 p.m., the scheduled time for descent, so company officials contacted the Sounkyo police station around 4:30 p.m. on the same day, and company officials further searched the mountain. When the company officials searched the mountain, they found a person in distress collapsed on a snow-covered slope about 250 meters up from the 7th station of Kurodake toward the summit at around 4:45 p.m. on the same day. Based on the conditions at the scene, it is believed that the person had slipped down the slope, hit a standing tree, injured his lower back, was unable to move, and froze to death due to hypothermia. The person in distress was transported by the Hokkaido Police Mountain Disaster Rescue Team.