Before we could arrive at the sound's origin, a window popped up before me. The contents written on the box told me I learned a new passive ability after fighting Meliodas. As I flipped the page, the skill told me that my team would be invulnerable from hypnotic attacks and other forms of manipulation, except if I ordered it. If I did not mention it to someone, that spell would not activate on my comrades.
If I had to guess it right, this passive spell worked perfectly with Meliodas. Since we fought against a bard that could control someone, my system recognized it as a threat. Thanks to my class as a knight, my system granted me this advantage. It gave me the passive skill, preparing me from my enemies that could do the same thing.
I still had no idea when I could use the spell's latter effect. But from what I observed, I might have to use that ability for this fight.