I Rely on My Harem to Conquer the World 我靠后宫征服世界

Young Li Haoran tragically died after being ruthlessly betrayed by his teammates in a battle against demonic beasts.
However, when he opens his eyes again, he finds himself reborn as the Blood Demon King in a tribe full of succubi.
On top of that, he has acquired a special system that allows him to grow stronger simply by building a harem.
This time, he will seize the opportunity, forge himself into a true demon, and lead his harem to conquer the world!