Michinori Harada, one of Dr. Harada's twin sons, emerges from his father's scientific experiments in freezing conditions and aerodynamics, which initially achieved mouse cloning. Dr. Harada expanded this research by training his sons to perform ski jumps on a single shared ski, pioneering the fictional discipline of tandem ski jumping. Michinori and his brother became forerunners in this sport, requiring them to synchronize movements and balance on one ski despite deliberately ambiguous scientific foundations.

Under their father's guidance, the twins underwent specialized training to master tandem jumping, forming a core aspect of their background. As a duo, they navigated the inherent challenges of coordination on a shared apparatus. Their athletic endeavors and training contributed to ski jumping pairs gaining recognition as an Olympic sport after a period of melodramatic controversy over its feasibility. The narrative depicts the sport's Olympic progression, where international competitors adopted elaborate, physically improbable formations during events.

Within the story, Michinori functions as one half of the pioneering athletic pair whose efforts directly enabled the sport's establishment at the Olympic level. His background is intrinsically linked to his twin brother and their father, whose scientific ambitions shaped their athletic path. Michinori's character development centers on his participation in this unconventional sporting endeavor alongside his brother.