The Great Emperor’s Thousand-Troop Summoning

The empire has fallen, and I’ve transmigrated into a down-and-out little prince fleeing for his life. No way to avenge my family? No hope of restoring the empire? What the heck... What’s this? An Emperor Growth System? It can summon heroes from across the ages? Millions of celestial soldiers? And it can even open portals to all sorts of worlds? Is this a portal to Douluo Dalu? Hahaha, you little brats, just you wait. Once I lead millions of troops to crush everything in our path, you’ll all be kneeling before me, calling me Grandpa!