Yuki threw several tuning forks. The ends of these tuning forks were reinforced and could be embedded into the ground or walls to continuously interfere with sonic radar.
Modern Martial Artists are invariably equipped with at least one or two "Surpass Innate" sensory abilities, whether it's sonic imaging or high-frequency radar, enabling them to accomplish tasks beyond the capabilities of innate senses.
As long as one knows the principles, these senses can be interfered with at a relatively low cost.
However, Yuki's purpose in throwing the tuning forks was not so straightforward.
Any Martial Artist facing an enemy's thrown object will be momentarily attracted, with attention passively focused on the object, and the brain immediately begins a process to determine if it's an explosive device.
Martial Artists not trained this way can easily die on the battlefield.
Naturally, small tricks have been developed to counteract this reflex.
