Eisen listened to Kirisho's explanation of the remnants of the Demon that had been left behind in that cave, and were now trapped inside of this crystal orb. While he was pretty sure that the former Eisen wouldn't have hesitated to kill it the moment he had the chance to, he couldn't be sure that the chance was actually there. If this smoke still held some thoughts, no matter how fragmented they were, then it might not be too crazy for him to think that the Demon is still roaming around in this world somewhere. On the other hand, maybe this smoke was simply left behind through one of the Demon's abilities. If that was the case, then it wasn't really possible for Eisen to figure out whether or not it died just from this.
"Except... maybe..." The old man muttered, looking back at the Mist Spirit in front of him, "It seems to be acting completely on instinct from what I noticed. Is that about right?"
