Shoot the Virtual Enemy Planes

Born into a very poor family, the elder brother "Ichiro" was smart and earnest, while the younger brother "Tomoe" was a violent good-for-nothing. Ichiro's talents led him to achieve his dream of becoming a pilot, while Tomoe earned a living in the nightlife. But then an incident occurred... On July 30th, 1971, a Self-Defense Force plane collided with a passenger plane during training! All 162 passengers died. The Self-Defense Force pilot escaped by parachute and was not injured. The Self-Defense Force member involved in this incident, "Tobisawa Ichiro," was smart and earnest, so why did this incident happen? This is a human drama that depicts the turbulent lives of these two brothers!