Original title: シンシア ～Sincerely to You～
The protagonist used to be a military pilot. One day, he was ordered to intercept a enemy aircraft but finds a civilian plane instead. He reported back to base, but they shot it down anyways.
The media got a hold of this, and basically the military placed the blame on the protagonist and forced him to resign.
A few years later, a survivor to the plane crash incident was found. She is a girl named Cynthia who was raised in the jungle the past few years by the wolves. Hearing this, the protagonist attempts to save the girl who has lost her human instincts and memory.