Harry Potter: Eclipse. - Chapter 6:

Ron finds himself reborn in the world of One Piece, stranded on a remote island in the East Blue. But he's not just any ordinary child—he’s bonded to a mysterious sign-in system that grants him powers with every new location he visits.At his first sign-in, he unlocks the legendary Sun Breathing Technique, along with a boost to his vitality. From Shitmotsuki Village to Skypiea, Enies Lobby to Marineford, Ron travels the world, collecting extraordinary rewards that make him a force to be reckoned with. The Raikiri, one of the 21 Great Grade Swords, Armament Haki, Observation Haki, and more fall into his hands.As Ron steps onto the battlefield of Marineford during the legendary Summit War, the mightiest warriors—Four Emperors and Marine Admirals alike—pause, stunned by his presence. But Ron merely waves them off, “Don’t mind me. I’m just passing through.”Join Ron on his journey across the Grand Line as he signs in at iconic locations, growing stronger with every step. This is not just an adventure—it’s a legend in the making.

In his last life, he was a superstar that dominated the entertainment circle. In this life, he is a rebellious second generation wastrel.

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!

- Description from Novelupdates

Yue Xuexia is just an ordinary salted fish that rarely lives in her house, but suddenly one day she woke up, received a sign-in system, and thought she was dreaming.The sign-in system rewarded her with multiple things, including houses, money, cars, and talent scrolls, which led her to the life of the richest lady in the world.She could sign in once a day.One morning, with her eyes groggily and blurry, Xuexia was welcomed by a holographic screen only she could see. Yes, like the ones in the novels and manga.Ding!Xuexia waves her hand in the empty air and mumbles, “Noisy, I told you to turn off the damn alarm, whoever owns it!”When a robotic voice lingered near her ears saying,Signed in successfully. Congratulations to the host, and you've received [1 Million RMB in cash!]Xuexia, who is currently in need of great money, was in disbelief as she looked at the words one million and laughed.“Heh~ even in my dream, I was wishing to receive free money. What nonsense, let's go back to sleep. Yue Xuexia was about to close her eyes back to sleep when the old touch screen phone near her pillow vibrates.Bzzt~ Bzzzzzt~“Urg~ who the hell is calling now?” complained Yue Xuexia in her half-asleep state.She picked up the phone only to see a message notification saying the following words:[Your bank card account ending with 5567 had received a deposit transfer from XXXX at 6:45 am. You had received a 1 million deposit and your current saving balance is 1,003,000.00 RMB (Autumn Field landbank)]Yue Xuaxia mumbled in disbelief and said, “Fucking hell! This is awesome.”Who doesn’t like free things?~' This lady wants it too!!!