Harry Potter: A Certain Ancient Rune Professor of Hogwarts (TL) - Chapter 645

At six, Jiang Huai stubbornly clung to the thighs of the fairy in white and wouldn’t let go. She took him back to the mountain and made him her only direct disciple.At fifteen, he changed his way of addressing his master from ‘mother’ to ‘sister,’ and after being severely beaten, he corrected himself to ‘Master’. Jiang Huai harbored a grudge in his heart for a full six years.At twenty-one, he learned how to talk back to his master.

The formless ancient world was infested with despicable demons. They hunted and feasted on mankind, keeping the human civilization constantly in a weak and suppressed state.

During the first known year, a magical mountain descended into the world from the realm of the Gods. Carved on this enormous mountain was a message: ‘Heaven Prevails’…

After the Grand Descent, a name that was given to the descending of the mountain, the Three Great Sages made their ways to Mystic Mountain where they learned to harvest what we now call magic, establishing the Mystic Cults and eighty-one sacred shrines to help aid mankind with the cult’s mystic powers against the eternal fight to the death with demons.

- Description from Novelupdates

Jiang Chao Ge, people called him “money hungry Jiang”. Went from a street hooligan to a newly appointed city official. The difficulties he experienced along the way he hid deep inside himself and did not say a word about it. He only wants be blinding in the eyes of everyone from now on.

Who would’ve thought that before he even had the chance to enjoy the wealth and reputation, he inexplicably passed into a different world. Moreover to his bad luck, the first thing he was faced with was being chased down to be killed. He just casually took a worn out rusted old sword to defend himself, why are these country bumpkins who’ve never seen the world chasing him so relentlessly?

In order to get himself a body guard, he tried to summon the ‘animal spirit’ in the sword. In the end, he summoned a devilish brat who rolled his eyes upon seeing someone, who only called him a good for nothing, who bit him whenever he got close. Where was the powerful, first class spirit weapon he was promised?!

No money, no power, no people, life constantly at risk. He couldn’t see the path ahead, nor could he face the fierce tiger behind. Jiang Chao Ge was beaten back into the abyss with one hit. In this unfamiliar world full of thorns, there is only one reason that allowed him to persevere and that is: to go back.

Hence, he was forced to embark on a desperate and risky journey with this devilish brat who he loathed mutually.

- Description from Novelupdates