The Demon Sovereign's Mortal Vow

In a dying world drowned in corrupting darkness, one young man discovers his greatest power lies not in godhood—but in the unbreakable bonds of family. As ancient horrors rise and reality itself unravels, he walks a razor’s edge between salvation and damnation, wielding forbidden power without losing his humanity. With every trial, his love for those he protects fuels his ascent through perilous realms of cultivation, where heartbreak and loyalty shape destiny. This is a tale of monstrous strength forged by tenderness, cosmic stakes grounded in intimate sacrifice, and a hero who chooses mortal joy over divine throne. For readers craving emotional depth, relentless progression, and a fresh twist on dark fantasy cultivation.