On the way back, Virgo, who was still confused, tried to ask Toru further about the ghost curse, "Master, what exactly is a ghost curse, is it the work of a monster?" Ask Virgo seriously, he thinks if it really matters, then he should help clean it up.
"You're not completely wrong, but ghost curses are actually caused by humans, more precisely by misguided magicians, they are a group that devotes themselves to monsters.
They do it to gain instant power, you may not have encountered them, some monsters also previously was a human.
One of the ways they evolve into monsters is to eat someone's soul, they somehow do it but this has also caught the attention of the royal mages.
You've seen it for yourself, everyone who has their soul taken will get black marks at some point. parts of his body and that mark is known as the ghost curse," Toru tried to explain briefly.
