In the crash, a United States Marine Corps (USMC) McDonnell Douglas RF-4B-41-MC, BuNo 157344,[1] c/n 3717,[2] 'RF611' (a reconnaissance variant of the F-4) of VMFP-3 flown by a USMC crew based at nearby Naval Air Facility Atsugi, en route to USS Midway in Sagami Bay, suffered a mechanical malfunction, the port engine caught fire, and crashed into a residential neighborhood.

Due to the fear that she would be adversely affected during her recovery by the shock, she was not told until 29 January 1979, that her sons had died.

The children’s mother, a 26-year-old woman, also suffered burns all over her body and was in and out of the hospital for a long period of time while undergoing 70 skin graft surgeries.

She was working hard to rehabilitate herself with the desire to see her child, and was not told that her two children had died the day after the accident.

The anime covered the life of the two young victims of the crash from the early summer of 1977 to their deaths on the night of 27 September 1977.