Yasuo Kawasaki serves as a police officer within a private security firm in a futuristic metropolis, harboring a fervent passion for mecha and machinery. He avidly collects specialized magazines and visibly lights up when encountering cutting-edge equipment, his fixation on technology eclipsing nearly all other pursuits—particularly romantic interests. This pronounced disinterest in women fuels tensions with colleague Isamou, whose priorities starkly contrast Yasuo’s tech-centric worldview.

A shared history with Noriko, a fellow officer, binds them through parallel experiences of early traumatic encounters with intimacy. Initially, Yasuo dismisses Noriko’s femininity, his mechanical obsessions blinding him to personal connections. However, their interactions gradually chip at his rigid perspective, prompting him to recognize meaningful pursuits beyond circuitry and steel. This evolution signals a tentative expansion of his social awareness, though mecha remain his anchor.

Tasked with combating crime through advanced machinery in an elite unit, Yasuo’s single-minded dedication to technology often clashes with his teammates’ diverse methods and personalities. His narrative arc orbits the friction between his consuming mechanical zeal and the slow, reluctant unfurling of his capacity for human understanding.