Xerom

A xerom (ゼロム) is an insect-like creature in Tales of Hearts.

Description
Xeroms are found within a person's Spiria Nexus, wherein lies the Spiria Core, which is vital to a person's life; if it is lost or shattered, the person is rendered either comatose or without emotion, and death will follow not long after if the situation is not changed. When a Spiria is interfered with, such as through the infestation of xeroms, it manifests as the disease despir.