MTL - He is From Great Sea of Stars - Chapter 148 exchange life

The little princess of the Huo family, one of the wealthiest families, was mistakenly switched out nineteen years ago! The fake heiress is well-educated, talented, and doted on, while the real heiress is an uncontrollable girl who loves to fight, has a strange personality, and had dropped out of school very early…

A teenager named Evan Mason was reincarnated into the magical world of Harry Potter and goes to school at Hogwarts!
With only his knowledge of the future and great talent for magic, he takes the path towards the top of the magic world, only to realize that ever step he took, changed everything!

- Description from Novelupdates

Until he became the lowest-ranked master, his lonely and luckless life never changed.

Suddenly one day, a descendant injected him with a nanomachine, and the machine started ‘speaking’ to him.

“What? What are you talking about?”

This was beyond the boy’s knowledge, he turned pale.

The Nanomachine linked to his cerebrum realized the User was not understanding a single word it said.

“Who are you, and why are you doing this to me?”

“Nano Mashin?”

The boy’s face hardened.

Mashin was the deity the Mashin Religion worshipped, along with the Sacred Fire.

The religions’ Master communicated with Mashin.

“Um, are you really Mashin?”

The boy knelt down and asked with a trembling voice. At this, the Nanomachine attached to his cerebrum realized it had been misunderstood.

Warning!!! This novel contain scenes that are not suitable for children. That includes on killing, suicide... torture... and R-21 scenes

Keira Del Carlo sold her virginity in the auction to save her mother and a billionaire bought her for more than 4 million dollars. Her life turned upside down when she signed the papers that the billionaire gave to her that night after she gave up her innocence.

Alessandro De Alegre was a vicious billionaire when it comes to business. But behind that merciless attitude, there's a soft spot that only meant for her.

He has been searching for his first love for a very long time until he found a lead that she's in an auction. He took advantage of it to have her back and made her sign the marriage contract while she's not herself. She didn’t even recognize him, and that’s when he found out that her memories with him had been erased.

All her time with him, he gave her everything including the Golden Age Entertainment that should belong to her. She lives with him without knowing that she's married to him the night he took her innocence and imprisoned her in his villa. She lives thinking that she’s the mistress.