Elixir Supplier - Chapter 25

They took his name, stole his life, and fed on his pain. But they made one mistake—they let him live.Betrayed by his own blood and sold into slavery, Prince Oliver Von Rich lost everything—his title, his freedom, and his future. For years, his captors in the Somaran Empire bled him dry, using his Royal bloodline as fuel for their Aether.But when they sought King Solomon’s Staff—a relic said to grant any wish—Oliver rebelled. Left beaten and dying, his blood soaked the ancient artifact… and awakened it.Dragged back in time to the eve of his kingdom’s fall, Oliver is no longer a helpless prince. With the scars of his past and knowledge of what’s to come, he’ll rewrite fate—even if it means becoming a monster.To destroy the empire that broke him, Oliver must embrace the cursed power of the most vile demon known to man.

To be exact, the female lead is an “older sister” type, amid many beauties and handsome guys, she's no white lotus.Also, it's said that the name of this book is the same as a brand of sheep's milk powder.

I didn’t know this was a world inside a game. And I didn’t know my master was a mid-boss. “No way… wasn’t she supposed to self-destruct because of her personality?!” …I’m sorry.

A world where people awakened abilities called Skills to those who come of age. The protagonist, Awakened with three godly cheat skills, does he uses them and rise to an existence called a hero or becomes a person who only cares about his own life.