MTL - Pihanjin - Chapter 42

The male student, Fukai Nagamasa, ignores his studies for college entrance exams in favor of following the path to chuunibyou. As he fainted during night cramming session before the exams, he realized that he was transported to a parallel world as a feudal lord in the Sengoku Era. Not to mention that suddenly, he was marrying the sixth Demon King, Oda Nobunaga’s little sister, the one who was purported to be an unrivaled beauty?

Shao Xian went back in time to when he was ten years old and met his pitiful old enemy. He wanted to personally train him so that when the other grew up, he wouldn’t turn against him.

But he didn’t expect that this old enemy would turn sweet and sticky after being taken care of.

It was just that this little sweet cake was too insecure and often, golden beads of tears would drip.

As soon as he cried, Shao Xian was helpless, and of course, he would want to give him everything.

—

On the way to an auction, Shao Xian died in a car accident.

Before he died, he thought, Fu Baizhou must be very pleased without him being present to mix things up.

After all, in Yan City, Fu Baizhou shocked everyone with a name of being cruel and ruthless.

Only one person dared to confront him.

When he opened his eyes again, he was wearing a custom suit, reexperiencing his tenth birthday.

He saw a dirty little boy being ridden on like a horse. He suddenly remembered the rumors that had been circulating widely in his previous life. It was about the tragic childhood of a ruthless man surnamed Fu.

- Description from Novelupdates

Transmigrated into the world of High School DxD, Roy believed he had been handed a life of luxury and glory. Born into the prestigious Lucifuge family, with his Sister Grayfia as his strict yet devoted older sister, he thought he was destined for greatness. 99,997… 99,998… 99,999… 100,000!!But... reality proved harsher: Roy lacked demonic talent and, despite years of training, remained a Low-Class Devil. his peers effortlessly achieve High-Class status, he’s been trapped in a cycle of endless sword practice and ridicule. Yet, he refused to accept mediocrity. Ten thousand sword swings a day, relentless training.. Until one day..[Ding! The Strongest Demon King System has been activated. Access functions to learn more.]---- High School DxD - Main World!1 - High School of the Dead [●] - First2 - Demon Slayer [●] - Second3 - Akame Ga Kill [●] - Third4 - Bladedance of Elementalers [●] - Fourth5 - Campione [●] - Fifth

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.