Aisopos

Ellios, fiancée of the powerful man of the city, Samos, ran away to Athens with her true love, Frontis. Therefore, the powerful man of Samos, Yadmon, brought his soldiers to Athens to kill Ellios and Frontis where they were hiding, and takes Aesop, their son, for his slave.

From LINE Webtoon:

You know his fables, but do you know his story? Yangsoo Kim and Dogado imagine Aesop's early life as a slave in Ancient Greece. He becomes a prisoner after his parents' love draws the ire of a powerful ruler. And that is only the beginning.