MTL - Rubik’s Cube Heavens - v4 Chapter 61 promise

Our protagonist Caam is a man from Earth that was reincarnated into this world as a demon. In order to survive, he spared no effort in avoiding the sparks of battle and without noticing it, he became strong himself.

Everyone knew Shen Nianshen so well.
In this world, there would probably be no female creatures that could enter his heart. Even the most beautiful girl in the school was coldly rejected.

Until one day, when there was a basketball match at the school. In the front row of the audience, there was a girl whose head was accidentally hit by the ball.

Shen Nianshen immediately ran to her. Everybody thought that he only went to get the ball. Unexpectedly, he squatted down in front of the girl, stroked her head gently, and asked anxiously, “Does it hurt?”

This a sweet love story between a cold guy and a lively girl.

- Description from Novelupdates

Magic is the programming language of the world. But in a fantasy world, nobody has ever heard about programming. That is, nobody except Aurea. Formerly known as Aurora, she was reborn with all the knowledge she brought from Earth.She spent the 40 years of her previous life studying society, science, programming, hermetism, mythology, and alchemy. She died financially broke and emotionally broken, but all her accumulated knowledge and her nerdiness are about to pay off.She starts her life as the daughter of a slave, set against impossible odds from the beginning. But if incantations work as a programming language, then she knows exactly what to do to turn the tables. Words and syntax were the bread and butter of her former life, and material components look more like APIs and plugins.She didn’t meet a Goddess, wasn’t summoned like a hero, didn’t have a System giving her an ability. Instead, she was just dropped there to fend for herself. But with her knowledge, she doesn’t need a cheat skill. She is the cheat herself.

In a world ruled by mana and bloodlines, John White was born with none.Reborn from Earth into a noble family, he became the forsaken son of a duke (a bastard) bullied by siblings, ignored by servants, and banished at fifteen like trash.Two years later, he's dragged to a mana mine to be quietly killed by his brother's lackey. But fate has other plans.Deep underground, an ancient abyss-grade ring awakens. It merges with Earth’s forgotten technology with the world’s magic. Fueled by pure mana, it unlocks the Black Hole magic, granting him power never seen before.From a worthless outcast to a terrifying Void Lord, John begins crafting magical tech tools that warp reality itself. His enemies have no idea what’s coming.Will he burn his past to ashes… or rebuild the world in his own image?