I was Caught up in a Hero Summoning, but that World is at Peace (WN) - Chapter 2207: Miyama Kaito’s Birthday Celebration Party ⑨

In the end of the era, the ghost wizard was killed in a car accident, the soul crossed, and he found himself in Japan, and he was attached to a Japanese.

I was thinking about taking a name in Japan, and I picked up a newspaper and glanced at it –

Kudo Shinichi, Sherlock Holmes of Japan’s Heisei, the savior of the police? In the trough, how does Laozi wear into the world of the second yuan? Well, all in all, this is a story of a wizard playing a passerby in the Conan world…

- Description from MTLNovel

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!

In the celestial empire, during the ninth year of the Mandate of Heaven,Chaos reigns across the land, and the people suffer.The royal governance collapses, and western barbarians with their pantheon of gods invade.New warlords arise, claiming territories; the Taiping rebels wreak havoc, leading to widespread misery.Calamities like floods, droughts, earthquakes, sandstorms, tornadoes, acid rain, blood moons, and meteor falls occur in succession.Countless demons roam, strange beings thrive, spirits mingle with the inexplicable, and mysterious phenomena arise.In these dark and tumultuous times, Tao Qian opens his eyes to find himself about to be beheaded at the vegetable market...

For ten long years, Adam was a prisoner within his own body, paralyzed and helpless, silently observing a world he couldn't interact with. As his life finally ebbed away, connected to hospital machines, his last conscious thought wasn't one of peace, but a desperate, burning wish hurled into the void: If I get a second chance, let me be the strongest.The universe, in its mysterious ways, answered. Adam was reborn, not into light, but into an infinite, suffocating darkness. Yet, within this void, he discovered an astonishing truth: he possessed unimaginable power. Reality itself seemed to bend to his mere thought; he could conjure wonders or horrors with a whim. He was, by all measures, the most powerful entity imaginable. But this godlike power came with a cruel twist – he was utterly trapped, unable to escape the encompassing darkness.His prison, he soon grasped, wasn't empty space. It was the consciousness of another being. He was an unseen passenger, a silent god locked within the mind and soul of Eric, the unassuming Third Prince of a kingdom unknown to Adam. Eric, frail and seemingly ordinary, was completely unaware of the cosmic powerhouse dwelling within him.Adam's initial goal was simple: escape or seize control. But a chilling revelation halted his plans – his existence was inexplicably tethered to the prince's fragile life. If Eric died, Adam's own newfound power, perhaps even his very being, might shatter. A reluctant protector was born from a desperate prisoner.Now, Adam walks a razor's edge. He subtly guides and shields his unwitting vessel, Eric, from the dangers of court intrigue and hidden enemies, intervening with earth-shattering displays of power only when Eric faces certain death. These brief, terrifying moments where the “weak” prince unleashes godly might leave the world baffled and fearful, whispering legends of the prince's hidden potential.To navigate this precarious existence and perhaps forge a path to his own freedom or dominance, Adam devises a unique tool: a 'System' granted to Eric. Is it a gift to empower his host, a means to strengthen the vessel for eventual takeover, or a dangerous gamble with unforeseen consequences?As Adam fights unseen battles, protecting Eric while plotting his own endgame, questions linger. Can he ever break free? Will Eric discover the terrifying truth of his inner 'guest'? And what will happen when the world realizes that the power shaking kingdoms doesn't belong to the prince, but to the ancient, godlike entity trapped inside him? His journey is one of immense power bound by frustrating confinement, a hidden war fought within a single soul, where the fate of a prince and the ambition of a captive god hang in the balance.