One Piece: Seaside System - Chapter 13: Marine Based -

The world that nurtured the civilization which reached the pinnacle of magic was on the verge of destruction.
The last survivor transmigrated to the past, when the magic civilization started growing, as countless mages were still fumbling their ways through the thorny paths of magic knowledge.
He, who came from the end of the magic era, aim to reach the pinnacle of magic.

- Description from Novelupdates

When low-level healer Elias Vale stumbles upon a cursed cocoon in a forgotten ruin, the last thing he expects is to hatch the reborn soul of the Demon Queen Revantra—in the form of a scared little girl.To save her from divine execution, she binds herself to him through an ancient soul pact, fusing their fates. Now, Elias is stuck raising the former destroyer of worlds—who can barely tie her shoes, but occasionally melts furniture when she pouts.What starts as reluctant guardianship soon spirals into something far more dangerous. As Rhea (her new alias) grows stronger, older, and far too attached, Elias must keep her identity hidden from zealous church inquisitors, ambitious heroes, and the remnants of her own loyal followers—some of whom want her dead... again.But the longer he protects her, the deeper the bond grows—and the harder it becomes to tell who’s really taming who.Because the world once burned beneath her wings……and this time, she’s not letting him go.

Karl, a young man stuck in a rough patch after losing his job and burning through almost all his savings, wandered through the cold, dark streets of Eldoria. On the damp, silent sidewalks, he stumbled upon something bizarre: an old gacha machine mysteriously appearing at every corner he turned, almost as if it was following him. Driven by a mix of curiosity and the overwhelming weirdness of the situation, Karl finally gave in and used his last bit of money on the machine. From the gacha ball, he pulled out a card with a barcode.Back in his cramped apartment, curiosity finally won over caution, and Karl scanned the barcode. To his shock, an app called “Common Sense Manipulation App” installed itself on his phone, claiming it could alter people's “common sense.”------Support Me By Gifts or Power Stones-----

She had always thought that he was a devil in human flesh. She feared him and hated him for the sins he committed but after seeing how much he changed to be a better person for her, it took her a great amount of courage to forgive him since by the time she found out the truth about him, she had already loved him. From being the worst husband and father to the best husband and father one can ever have. Lu Yifeng was given a second chance to correct every wrong deed he did. He was the man who destroyed their family and it took death to make him realize his wrongdoings. . . . . "Meilin, come here." She turned to her husband and smiled, "Mr. Lu, we are at work, didn't we already agreed to behave while we're here?" "I want to have an affair with my secretary." Lu Yifeng said calmly. "Can I?" Xia Meilin narrowed her eyes, "No." He stood up and walked toward her which made Xia Meilin take a few steps backward away from him when she saw the dangerous look on Lu Yifeng's eyes. She stopped when she felt the cold wall against her back. Lu Yifeng ended up cornering her. "I'm the President of this company, I do whatever I want to do, including having an affair with my secretary." Xia Meilin refused to back down that's why she ended up glaring at him. "Do you want to get beat up by your wife?" The side of his lips curled up into a smirk, "Will she now?" He cupped her chin and bowed his head to place a soft kiss on her lips. "Then stop acting as my secretary. You're my wife, it's your job to watch over your husband. If you want to have a salary, then I can give you all my money." A faint blush appeared on Xia Meilin's cheeks after she has been kissed by him. She pouted and turned her head away, "I just want to try how it feels to work as your secretary."