MTL - Start with Batman - Chapter 9 Secret Service 9

He is a young man without a spirit root. It is believed that this denies him the chance at cultivation. However, a mysterious lady imparts a Supreme Demon Classic to him and from then on, he starts his path of cultivation.
He undergoes a total transformation to emerge as the most fearsome and powerful fiendish demon in his era, that even immortals and fiends are fearful of him, and saints are at his beck and call.
Mastering the Supreme Demon Classic is the turning point in his life. He is able to unleash his immense and divine power from within, illuminating the entire universe!

- Description from Novelupdates

“Great Saint, why did you follow that thieving baldy to rob the sacred mountain?” “Ah, it’s a long story. Back then, that thieving baldy grabbed my neck and asked me, ‘Are you coming with me to the Western Heaven, or should I send you to the Western Heaven...’” “What about you, Marshal Tianpeng?” “He said he was afraid of getting hungry on the way to the West, so he brought some dry rations along.” “...” This is a story filled with joy, scheming, and relentless teasing all the way through.

In a world where six once-allied nations now stand divided, the kingdom of Myralis, a symbol of self-sacrifice, has fallen into oblivion. Centuries after its mysterious downfall, Caelum, the last disciple of a forgotten deity, embarks on a perilous journey to restore his nation's honor.Guided by the enigmatic teachings of his vanished mentor and armed with the legendary Seal of Abnegation, Caelum must navigate treacherous politics and face champions from rival kingdoms in a deadly tournament that will decide the fate of the world.As ancient secrets resurface and alliances crumble, Caelum discovers that every truth hides a lie and every ally could become an enemy. His quest could either unite the Six Nations—or precipitate their destruction.Will he master his heritage and fulfill the prophecy that marks him as Myralis’s savior, or will his choices doom the world to chaos?

This is a world with only oceans, through which scattered are countless small islands and treasures.With swords, gunpowder, sailing ships, and most important, the Treasure Hunting System, Alka is ready to dominate the oceans!「Map detected」「Scanning for Treasure」「Scan complete」「Happy Treasure hunting!」