MMORPG: Rebirth Of The Strongest Assassin - Chapter 27: GAIA

“I betrayed the only man who stayed faithful to me, and died by the hand of the father I worshipped.”​Olivia Luceron was the perfect tool. For years, she acted as a spy within her own marriage, feeding her father secrets to dismantle her husband’s power. Her reward? A cold dungeon, a mutilated body, and a walk of shame through the empire’s streets.​Her husband, Duke Matthias, whom she treated with nothing but icy indifference, died protecting her. Her father, whom she gave her soul to, was the one who ordered her torture.​Now, Olivia has returned a year before her death.​The platinum hair she lost is back. The scars on her chest have vanished. And Matthias—the man who kissed her forehead in a dark cell before facing the executioner—is still alive.​She doesn't seek his forgiveness. She doesn't even seek his love. In this life, Olivia has only one goal: to use her position as the Duchess to systematically destroy the Locron family from within.​She will be the “Perfect Wife” this time—a mask of ice to hide a heart of fire.“Dear Father, you taught me how to be a monster. It’s only fair that I show you what I’ve learned.”

The King of the Underworld returns, and due to a marriage contract, he comes back to the city to marry, only to meet his ice-cold wife. Surrounded by numerous admirers, including a former first love, a beautiful colleague, and a cute lolita... As skilled enemies attack, watch how the King of the Underworld responds.

This novel is also known as Almighty Video Game Designer

Chen Mo a game designer got sent to a parallel world with advance technology but undeveloped game concepts.

Watch as he redefines the world’s gaming industry with the games he remade from his old world.

- Description from Novelupdates

A god of a different world had abruptly appeared in my classroom and semi-forcibly summoned the entire class to his world.ーーーーexcept for me, Kamiya Yato.