Dagger of Mob Mentality
Description
The Dagger of Mob Mentality first appeared in Chapter 231 of the web novel and is described as glowing with a strange light. It was in Welst's possession until it was confiscated by Naofumi.
After Ren copied it using the weapon copy system, the dagger was discovered to have the ability to brainwash those it pierces into holding the same opinion as the owner. More fundamentally, it makes one's mind a single part of a whole and prevents an individual from making any decisions on their own.
It was later found to be a replica-like weapon based on Itsuki's Legendary Bow curse series, and as such the Holy Weapons consider it a curse series weapon itself. Its copied version is unlocked by the Weapon Copy Dagger of Mob Mentality and grants the ability 'Release by Brainwashing'.