MTL - Start with Batman - Chapter 350 got you

Takahiro Nao, a 25-year-old drowning in debt and despair, lives only for his struggling family. Every sacrifice he makes is for them—until a selfless act costs him his life. Instead of the end, Nao encounters a Goddess of Benevolence who offers him a miraculous deal: “Live in a new world, and your efforts there will support your family back on Earth.”Reborn into the dead body of Naoki von Blackmore, the so-called “Failed Hero,” he finds himself burdened with the daunting task of saving the world by defeating the Demon King—all while supporting the family he cherishes. Armed with formidable powers yet haunted by his past failures, Nao steps into a dangerous realm of swords, magic, and ferocious monsters. Facing relentless enemies, harrowing trials of life and death, and an unyielding fate, he’s forced to confront the ultimate question: how far is he willing to go to protect the people he loves?Filled with emotional struggles, determination, unexpected humor, and a touch of romance, this story asks a powerful question to the readers: What would you sacrifice for the people you love?

After all, transmigrators of this era were no simple matter. Some became slimes, others turned into treasure chest monsters, and some were even reduced to mere skull--such things were all commonplace.It was nothing more than playing a villain, Shiayar didn't care. Wasn't it only natural to pay some price to become stronger?[Destined Great Villain System][“Let this world feel the agony!”][Newcomer Mission: Let the young and naive Grand Duke's daughter of the Azure Garden Dukedom, Miss Silvia, experience the betrayal of her loved ones and, amidst the pain and despair, complete her transformation and rebirth.]

Having been reborn, she takes one glance at her ridiculously handsome husband and wonders if she had suffered from brain damage back then—she had actually demanded for a divorce with him. Repeatedly!

Talent.As a demon born into a prestigious family like the Tenebris, Cale lacked nothing, except talent.Talent, to surpass his twin sister, who was better than him in every way.Talent to earn the approval of their mother, the cold and ruthless Matriarch.It wasn’t mere rivalry; his very life depended on it.But, no matter how hard he trained or how low he stooped, using forbidden methods to grow stronger, he never succeeded. He couldn’t awaken his bloodline, nor defeat his sister in a single duel.“Just give up already. You’re only making it more painful for yourself,” she would say every time.He was pathetic, and he knew it.But giving up on life was never an option.“One more time... I’ll try it one more time.” That was how he always responded to her scorn.Was it ego? Or a desperate desire to prove everyone who waited eagerly for his downfall wrong?Cale didn’t know. But he always stood up again.No matter what they said, he refused to surrender.Not to his mother.Not to the world.Not even to his sister.If the world stood against him, then he would crush the world.-------------------------“Wow. That’s an incredible backstory for a villain.”I flipped through the worn pages of an old book, my only functional eye open wide.“But where did this come from? It wasn’t here before.”I’d read this romance fantasy novel back in my childhood, and as far as I remembered, Cale Tenebris never had a backstory.“Did I grab the wrong book?” I tilted the cover to check the title.[Curse of the Crown]It was the same one.“Did I skip this chapter before?... Whatever.” I shrugged, turning the page again as I slowly lost consciousness.And then I died.