Sanae Torimi, a 44-year-old proprietor of Tokyo’s Genesis Café, oversees a bustling haven for motorcycle enthusiasts near Hyuga Corporation. Her establishment thrives as a social nexus, anchored by her deep ties to the riding community and intuitive grasp of its subculture.

She raised Dan, a 27-year-old office worker by day and the rider "Zebra" by night, fostering a relationship built on shared understanding. Her mentorship stems from years of attunement to his personality and passions, reflecting her lifelong role as both caregiver and guide. While her early years and family history remain undefined, these formative experiences define her present identity.

Sanae’s interests span intricate nail art, competitive gaming, and the high-speed drama of motorcycle races—pursuits that mirror her duality of creativity and thrill-seeking. She navigates café management and personal hobbies with equal ease, often exchanging stories and advice with the riders who populate her café’s lively atmosphere.