This novel follows Ngao Tran, a man who unexpectedly receives a powerful system from the Dragon Emperor. Despite his newfound power, Ngao Tran harbors no ambition for kingship and sees beautiful women merely as fleeting distractions. His sole desire is a peaceful life alongside those he cherishes. However, fate intervenes, and divine beings conspire to remove him from existence. Forced to act, Ngao Tran embarks on a legendary journey of "defying heaven and slaying gods" to assert his place in the world. With a single sword, he strikes fear into immortals, gods, and Buddhas alike, forging a formidable reputation as the "Slaying Emperor" whose might shakes the very foundations of heaven and earth. The narrative intricately weaves in elements of Vietnamese mythology, referencing figures like Lac Long Quan, Au Co, and the Four Immortals, while also introducing unique twists, such as the Four Divine Beasts becoming traitors or Sơn Tinh and Thủy Tinh being brothers. The story is designed with numerous secrets that gradually unfold, promising a journey of discovery for the reader.