Shadow Slave - Chapter 29: The Last Day on Earth

In the King’s game, the [King]’s order is absolute and has the power to create rules. As the owner of a special physique, Gu Huai was selected by the system to participate in the game.

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

In 2121, a terrible pollution disease swept through the world.

“We call it distortion, but perhaps, the history records of later generations will call it an evolution.”

The world experienced involution.

Today, that person’s head split into two. Tomorrow, that flower would grow fangs. The day after that, that fish would climb ashore with its legs…

Lu Yan: And I am merely a mediocre doctor who treats the pollution disease.

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Patient A: When I first grew 18 tentacles, I was having a great time eating [beep—] by the seaside. As soon as Dr. Lu came, he cut 17 of them for me. He’s really a brilliant doctor!2

Patient B: I am a poisonous mushroom. My spores are highly toxic and can be parasitic. I gave birth to hundreds of thousands of microspores, which made it worse for my already poor family. Dr. Lu helped me practice family planning when he came. This great kindness will forever be remembered!

Patient C: I have eight mouths. I was a picky eater and only ate meat, so I set up a slaughterhouse for this purpose. But then, Dr. Lu cured my picky eating. This woman of faith is willing to be a vegetarian for the rest of her life in exchange for Dr. Lu’s happiness and well-being in this life.

Lu Yan, the top of the food chain, the eternal god.

- Description from Novelupdates

Mu Yue traveled to the world of Naruto and became an ordinary chuunin teacher at Konoha Ninja School and a member of the Root Organization.

Fortunately, after awakening the teacher system, you can become stronger by teaching.

In order not to become Danzo’s consumables, Mu Yue worked hard to teach and increase her strength.

“Complete the teaching rated A for the first time and receive the reward – mastery of fire attribute chakra properties change.”

“Under your guidance, Uchiha Shisui has worked hard to practice, and his overall strength has been greatly improved, and he has been rewarded – the Immortal Human Body!”

Under Mu Yue’s guidance, Zhishui understood that the village’s enemies were not necessarily other big countries, but could also be within the village. People who spoke righteously about the will of fire might not necessarily act in accordance with the will of fire.

Obito got rid of the title of being the weakest person in the ninja school, and Metkai became a master of physical skills even earlier…

- Description from novelbuddy