"Breath of the Wind" is a full-length mystery novel by Matsumoto Seicho.

The Mokusei crash was an aircraft accident that occurred on April 9, 1952, during the Allied occupation, when a Japan Airlines passenger plane, the Mokusei, crashed into the side of a mountain near the crater of Izu Oshima. It is said to be the first civilian aircraft accident since the end of the war.

On the afternoon of the day the Mokusei went missing, several announcements were made, all from US military sources, such as "All the crew were rescued by a US military rescue team... 16km southwest of Lake Hamana" and "The plane was lost... off the coast of Maisaka". As a result of the search being thrown off balance by these announcements, the plane was not found until a full day after the accident. The biggest mystery in this accident was that the Mokusei, which was supposed to fly over Oshima at an altitude of 6,000 feet, crashed into Mt. Mihara, which is 2,000 feet above sea level. The Aircraft Accident Investigation Commission of the Ministry of Transport narrowed it down to human error and requested the US military to submit tapes of communications between the American pilot and the Air Traffic Control Center (at Johnson Air Force Base, Saitama), but this was refused, and the matter was settled with the submission of typed paper records. The Aircraft Accident Investigation Commission finished its investigation in an unusually short time of just one month, and the cause of the accident remained a guess. There were many speculations about the cause of the accident, including an abnormality in the altimeter, an explosion, a plot by the US military, or the captain being drunk. At the end of the same month that the accident occurred, Japan regained its independence, and Japan Airlines began independent operations in the autumn of the same year, but the truth behind this accident, which occurred under US military air traffic control, remains unknown.