The last giant dragon in the world - "The Calamity of Heaven" Elonais, was betrayed by a group of young men, besieged and eaten by humans and returned to the past.
Ah, it couldn't be better.
This time, rule the human world, resurrect mom and dad, and live a happy stay-at-home life again!
Later, the evil dragon who "resurrected" again and again fell into deep thought - why does the dragon live?
Later, the evil dragon bought a cub from the slave merchant...
This is a story about growth and redemption.
Concept: The journey of mutual redemption between the PTSD dragon and the slave boy