使い魔として飼育される生き物は数有れど、
虫を選ぶ術士はそう多くない。
ましてや、この世ならざる蟲どもとあれば。

それは三尸の虫、地獄に通じる密告の徒。
宿主の体内に巣食うことで様々な能力を発揮するが、
所詮は食い、増え、潰される定めの魔虫。
宿主に待つものは、おぞましい破滅しかない。

Many creatures are often chosen as familiars, but not many mages would choose insects, especially those insects that are not of this world.

This insect is the informant of hell itself.
As a parasite, the host will gain various abilities, but ultimately, this insect's true nature is to devour, multiply, and destroy.
There's nothing that awaits the host except terrifying demise.