From Refugee to Riches / Ancient Group-Buy King

Yadiel Carney wakes up as a starving refugee in ancient times,saved only by his sister Delilah Carney, who sacrifices her own blood to keep him alive. But she's about to be sold to bandits by their greedy family. At the brink of despair, Yadiel awakens the Group Purchase System, turning scraps into resources. He saves his sister, crushes his ruthless relatives, and rises from nothing by uniting the refugees. As his power grows, he crosses paths with a princess and becomes the key to saving the empire, winning both glory and hearts along the way.