Satomi Hakase, nicknamed "Professor," is a brilliant robotics prodigy in Mahora Academy’s Class 2/3-A, ranking among its top scholars alongside her close collaborator and friend Chao Lingshen. Her groundbreaking fusion of technology and magic materializes in Chachamaru Karakuri, an android co-developed with Chao—a paradoxical achievement given her professed skepticism toward non-scientific phenomena. Though instrumental in Chao’s scheme to expose magic globally during the Mahora Festival, she hesitates at the critical moment, revealing a tension between ambition and caution. Post-Chao’s departure, she refines Chachamaru’s design for heightened emotional expressiveness, meticulously chronicling the android’s evolving sentiments, particularly in exchanges with Negi Springfield. Beyond robotics, Satomi’s strategic mind aids allies in Ostia’s conflict via surveillance systems. Her later theoretical frameworks for merging magic and science become foundational to transformative endeavors like planetary terraforming and orbital elevator construction. A brief epilogue reference notes her eventual marriage to an unnamed governor. Quietly dignified yet occasionally prideful about her inventions, Satomi earns the "mad scientist" moniker alongside Chao due to their boundary-pushing experiments, often tested on Ku Fei. She actively participates in the Robotics Construction Research Society and Advance Jet Research Society, leveraging university resources for her work. Her genius encompasses sharp analytical skills and a pragmatic, if reluctant, mastery of magical applications—embodying a duality that bridges empirical rigor with the flexibility to harness the arcane when advantageous. This interplay defines her legacy as both a purist and an innovator, reshaping technological and mystical frontiers.