Huo Yao opened her box and brushed her fingers over the bottles. Then her habitually expressionless face became grave.
Wuyu was a neurological poison. Although it was not domineering in nature, it could eventually damage all the nerves of the person from the roots.
The poison usually did not get triggered without major injuries. However, it would attack the person like a creeper when he suffered from any neurological injury and slowly attacked all nerves in his body. In the end, the afflicted person would eventually become completely disabled.
The poisoned person would present symptomatic intervals of hysteria and there would be dark patches around his temples. In the middle and later stages, the person would lose body mass swiftly, and inconspicuous red patches would start to appear.
Wuyu was a neurological poison because it tucked itself away in the patient's nerves and was impossible to detect through blood tests.