Tech Architect System - Chapter 1: The Rooftop Below the Stars

When MC was reliving a picture of a goddess, he died. Only meet the goddess, but instead of torturing him to eternity, she gives him wishes. And make him reincarnated in the Overlord world.As the name suggested, this is multiverse Fan fiction, that means MC will travel through different world like Marvel, DC, High School DXD, My vampire Diaries (may be) , Demon Slayer, etc.first world: Overlord (Chapter: 1—60)second World: Highschool DXD (Chapter: 60—215)Third World: Demon Slayer(Chapter: 216—)Fourth World: New World (Overlord)There will be a harem, no NTR or stuff.Some of you might dislike the Yggdrisil arc as it is a bit of AU and MC talk a lot. But it is only in this arc on world travel that I will tone down his unnecessary internal monologue.I am not a professional writer, and I have no deep experience in writing, so please ignore my grammar mistakes and such. I also took some inspiration from other fan fiction.It would be a great help if you could donate your power stone to me.

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.

Lu Shang picked up a dirty teenager while discussing work at a bar. It was merely happenstance, but memories from ten years ago resurfaced when he saw the gunshot scars on the teenager’s back.

Lu Shang asked him, “What is your name?”

“Xiao Li… My surname is Li, so they all called me Xiao Li.”

“You don’t have a name?”

“I don’t remember.”

Lu Shang said, “Then I will call you Li Sui. From now on, you will be with me.”

From that day onward, a young “lover” was always by Lu Shang’s side.

Years later, Dr. Leung teased Lu Shang, “You didn’t get his heart, instead your heart caved in; boss Lu, that doesn’t seem like a bargain.”

He lived from BC to the Middle Ages, from the Renaissance to the Industrial Revolution, and from Cyberpunk to the Interstellar Age. He has been a king and a prophet, a knight and a nobleman, a versatile artist, a genius inventor…
This is a four-thousand-year human epic——
“To us four thousand years from now:
“Is the world at peace? Is famine extinct? Can people touch the stars? How long is the human lifespan? How far is the boundary of the earth? Human…do you remember us?”
——Excavated from Earth Age Tenth Century BC, Solomon Prayer Book.

- Description from novelbuddy