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Angel's first concern right now was, Where is this place?
It seemed to be an underground tunnel.
Angel looked at both ends of the tunnel, and aside from the spot where he was, which had some light, both ends were pitch black.
Although he was curious about where the ends of the tunnel led, he didn't have any plans to explore. Staying here at least allowed him to see the exit, so when the battle outside was over, he might be able to leave through here.
But if he went to explore, no one knew if there would be dangers lurking in the depths of the tunnel.
After all, this was Lassudral, the city of demons. Even if a weak demon popped up, Angel might not be able to defeat it.
For Angel, Lassudral was hardly a place with relative safety. That was why Angel had never ventured out despite having been in Lassudral for so long.
Therefore, under these circumstances, Angel chose to wait where he was.