Reincarnated as the Demon King's Son - Chapter 35: Goodbye

One day, Luo Jian woke up from his sleep and found himself in a locked chamber where the door and window were all sealed. A note with a few lines written on it was tacked to the wall: “Escape from this room within an hour, otherwise, you will die.”

There is a sequel called Reincarnation Night (轮回之夜) that takes place in the same universe but has different main characters

- Description from Novelupdates

Jeon Eun-woo has lived for almost thirteen years in isolation in a cell at the Blackwood Research Center.He doesn't remember who he is, he doesn't know who locked him up, and he doesn't know why he's still alive.The apparent calm with which he has lived is shattered when he is assigned a cellmate.Rhys, a young man with invisible scars, appears in Eun-woo's cell with one goal: to kill him.Because Eun-woo is not just any person.He’s the last living Esper.But upon coming into contact with Eun-woo, Rhys unexpectedly bonds with him, something that shouldn't be possible because Rhys isn't a Guide.Or is it?

Three years after graduating, Chu Mo, who could barely maintain his basic livelihood, activated The Tycoon System, and a bank card with an unlimited credit limit that could be safely used appeared before him. Start a company? Make investments? Buy stocks? In the face of the bank card with unlimited credit, these options seemed to lose their significance. Having already obtained inexhaustible and unlimited money, he might as well live comfortably as an infinitely wealthy tycoon.

Three rejections. Three shattered dreams. That was Layla’s reality, all because she was different—a half-shifter in a world obsessed with purity. Ostracized, shunned, and finally sold off like a pawn to the most feared ruler alive—the Lycan King. He was ruthless, a king with a graveyard of brides, each one a ghostly reminder of a fate worse than death.Layla loathed him. Hated the way his gaze cold and fathomless, held no warmth for her. Hated how his touch, both thrilling and terrifying, sent an uninvited chill down her spine.---“I hate you!” I screamed, hands clenched so tight my knuckles ached.He sighed, a smirk curling at the edge of his lips, his tone mocking as he closed his book with a deliberate snap. “Stressed, are we?” he asked, strolling toward me, each step reminding me exactly who held the power here.“Lucky for you,” he drawled, rolling up his sleeves as he stopped just inches away, “I know exactly 70 ways to ease those nerves.” His fingers brushed my cheek, a touch that seemed to burn into my skin. “The first… a hug.” His voice dropped to a rough whisper as he leaned in, breath hot against my ear. “And the rest... well, that's 69? what do you say about that?”I swallowed hard, my heart thudding wildly as he tilted his head, waiting for me to react, that insufferable smirk still in place.“What’s the matter, darling?” he murmured, a taunt lingering in his gaze.---A Dangerous ObsessionCan she resist the pull, or will she dance into the flames of her own destruction?A dark dive into obsession, raw need, and the razor’s edge between desire and devastation.---LYCAN KING CASSIANI will tear her apart piece by piece, feeding the wildfire that grips her with each shuddered breath. Like air to flame, I’ll claim every inch, drawing heat from her skin until it sinks into her bones.Her pulse will race under my hands, her breaths shallow, pleading. Her eyes may scream, but her lips will still murmur my name. That first taste of fear will only feed something deeper—a need that burns through her veins, molten and fierce.And just when she’s too far gone to turn back, I’ll twist the knife, giving her the pain she’s learned to crave.She’ll be the moth to my flame, helpless against the very thing that will consume her.