Tenjin

Riku's father was a squad captain of JSDF's air force striker-jet. He highly respects his father and aspires to become like him. One day, there was an "accident" when his father was training the newbies. A trainee lost consciousness, and crashed to the ground, the accident took 4 lives away. The father was deemed responsible for the accident because it was said that he was "neglecting" the trainee. After the accident, he lost his rank and transferred to the ground base, resulting in him losing his right to fly again. Riku's wants to uncover the truth and meet "Tenjin", the sky god that his father always talked about.