From the BBC:
Hiroshi Yagi was driving through the Chichibu Tama Kai National Park when the animal came up from the stream on his left, passed in front of him and stopped about two metres (6.5ft) away from his car. It showed no fear as he edged towards it, firing off several photographs. The creature was apparently unfazed by the presence of a human. Either it was comfortable being around humans, or felt unthreatened because of its status as the apex predator in this habitat.
“This was 23 years ago, and I didn’t have much technical knowledge then,” says Yagi. “But I thought, ‘This must be a wolf’.”