The user wears a device on their forearm that's loaded with five senbon. The device is fired by pulling an attached string, which quickly shoots the five senbon at any aimed target. Because of how the device is configured, the senbon cannot be fired individually. However, by channeling chakra into the string, the user can alter the trajectory of the senbon, either to concentrate them on one point, spread them over a larger area, or even change the direction of the senbon from what the device is aimed at.
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