The Shadow Demon, a born hunter, a bloody pursuer, is not to be considered weak among all the dark creatures that Casio has encountered.
However, it pales in comparison to the Demon Idol. Ranked fifth in the Endless Calamity, a dark ultimate creature, it inherently has a huge difference. This can be seen from the collision of their life fields, the life field of the Shadow Demon is simply not a match.
With a little serious effort, Casio, after burning himself for two or three days, can assimilate the Shadow Demon all at once through the life field of the Demon Idol, turning it into a puppet without intelligence.
At this moment, the Shadow Demon is still parasitic on Casio.
However, it no longer has subjective consciousness. It seems like there are countless invisible threads in its life field, connected to the life field of the Demon Idol, reacting to every action accordingly.