In a futuristic society divided between the genetically enhanced Nanorace and the discriminatory Purerace, Beck, a renowned hunter wielding the power of 'Red Ash,' plans to transition to the latter group through surgery. Teaming up with the gentle giant mechanic Tyger, they venture into the ancient realm with their advanced machine. Their path intersects with Call, a fugitive chased by the relentless Safari and Stripe. Together, Call, Beck, and Tyger embark on a journey to the enigmatic clockwork world. However, their pursuers, Safari, Stripe, and their leader Deny, are determined to capture Call, setting the stage for a climactic showdown against Beck and his companions.