But for a Stone (A Matou Shinji Series AU)

What if there had never been a Boy-Who-Lived? What if, at the end of the Wizarding War, young Harry Potter had died alongside his mother and father, killed in the explosion that destroyed the house at Godric's Hollow? How would it look through the eyes of an outsider from Japan - a young man fresh come into his status as a wizard, who seeks his fortune in a distant land?