I don’t think the demon was Sebastian: 1. No soul sacrifice ritual to summon him, he just pops out of the blue and starts granting wishes 2. Different placement of the seal; Sebastian has it on his hand, this demon on the back of his neck 3. Sebastian doesn’t seem to have any idea about the exorcist group. Maybe he wouldn’t remember random people he ate but surely he would remember some group that could actually hurt him
About the exorcist group itself, I wouldn’t be surprised if their weapons are just more death scythes, since so far it seems to be the only weapon capable of hurting demons
I don’t think the demon was Sebastian:
1. No soul sacrifice ritual to summon him, he just pops out of the blue and starts granting wishes
2. Different placement of the seal; Sebastian has it on his hand, this demon on the back of his neck
3. Sebastian doesn’t seem to have any idea about the exorcist group. Maybe he wouldn’t remember random people he ate but surely he would remember some group that could actually hurt him
About the exorcist group itself, I wouldn’t be surprised if their weapons are just more death scythes, since so far it seems to be the only weapon capable of hurting demons