Immortal was surprised at the team of five that faced him with a vigilant expression.
"What's the matter?" His lips curled up into a generous smile but his eyes narrowed, scanning the holy squad with a suspicious gaze.
The team of his kingdom wouldn't allow killing others, so he let them die even though they could've brought them into the barrier. Then he killed the naive princess who was also sent as a part of the sealing team.
All that was left was to subdue Isadora and then, reseal the devil and achieve a new ending. Once that's over, he could leave this world with Isadora and get out of
Paradise.
To be honest, the perfect hybrid couldn't have come at a better time. He's suppressing himself from hitting the divine ranks.
By design, Immortal was created to be an entity that's perfectly aligned with the paths of life and death. That included the path of soul too.