Grief Spirit

is one of the six natures of spiritual chakra that is able to be availed of in the practice of fujutsu. It is performed by molding spiritual chakra into shapes such as spikes and whips that can damage and restrain an opponent. Techniques produced by this nature are also capable of causing intense feelings of sorrow and anguish in their targets. Shukuyū has been stated to be the highest level of this spiritual power transformation.