Toshifumi Harada, a quantum physics professor, specializes in "inflight division," the phenomenon where objects in flight unexpectedly multiply under specific conditions. His research began with wind tunnel experiments on rats, forming the theoretical basis for tandem ski jumping. Driven by extreme dedication to prove his theory, Harada conducted high-risk experiments, including strapping his two young sons to a single pair of skis and sending them down playground slides, resulting in near-catastrophic outcomes. This reckless act directly inspired his creation of the sport of ski jumping pairs.

Harada exhibits significant social awkwardness and is portrayed as a seedy, socially inept academic. He often faces ridicule and misunderstanding for his unconventional ideas. Despite widespread skepticism, his persistence gradually attracted converts and fans to the sport. His leadership, combined with the athletic skills of his sons who became the world's first tandem ski jumpers, helped popularize the discipline internationally. European and American athletes eventually developed their own styles.

Harada's primary ambition was to see ski jumping pairs included in the Olympic program. This ambition culminated in its acceptance for the 2006 Torino Winter Games, representing the fulfillment of his perceived "destiny." However, this triumph was preceded by an unspecified tragedy. His character embodies a blend of scientific obsession, paternal influence, and underdog resilience, driving the sport's evolution from theoretical concept to Olympic recognition.