MTL - Top Strong Cultivator as a Teacher - Chapter 3191 Dark **** king, detestable

Youth, is meant to be used to shed sweat under the sun!

Youth, is to continuously engage in battles, and secure the win! The endless journey on Heaven’s Road, an endless expedition, a testimony of a hot-blooded youth’s legend!

A dream every man harbors, with the ignition of the blood! Forever young, Undefeated God of War!

- Description from Novelupdates

Gou Liang travels through worlds in order to complete a mysterious and arduous mission…

16 worlds in total:

School Campus: Strawberry Flavored Scholar Gong √
Entertainment circle: Lemon Flavored Film Emperor Gong √
Ancient Time: Honey Tangerine Flavored Shadow Guard Gong √
WuXia: Melon Flavored Senior Brother √
Beastmen: Pineapple flavored Beastmen Gong √
Ghost Spirits: Snow Pear Flavored Dead Gong √
Ancient Time: Gr*pe Flavored Regent Gong √
Apocalypse: Banana Flavored Boss Gong √
Interstellar: Pomegranate Flavored Sentinel Gong √
Modern: Citrus Flavored Aristocrat Gong √
Mecha: Sweet Jujube flavored Lunar New Year Gong √
Ancient Time: Durian Flavored Battle God Gong √
Magic: Watermelon Flavored Blacken Gong √
Cultivation: Cherry Flavored Disciple Gong √
Fantasy: Blueberry Flavored Demon King Gong √
Celestial World: Bayberry flavored Senior Immortal Gong √

- Description from Novelupdates

This is the story of an orphan, Lu Shu. He is not any regular orphan, but a metahuman experiencing the changes in himself, his country and the world during the dawn of the magical era. Watch as Lu Shu embarks on a journey to hone his peculiar abilities together with his sister, the adorable and charismatic Lu Xiaoyu. Along the way, they’ll encounter supernatural events, obstacles and even the most powerful people in their country. How will Lu Shu make the best of his abilities and oust his never-ending list of rivals and opponents?

The hero who was killed by the demon king ended up reincarnated as the son of the one who killed him! Thus began the life of the hero who donned in the mask of the ideal demon prince to topple his own kingdom while doing his best to prevent anyone from discovering his identity―― But to do that and blend into the demon tribe society, he had to kill his former comrades. Nevertheless, to become stronger, to save humanity, he had to walk through all kinds of paths of carnage! This is the tale of the demon race’s fake prince destroying his own kingdom.

O Hero, Trample Those Who You Should Protect!

TN: Most part of the other character in the novel is depicted from a non-human perspective so expect something that is completely different from the common sense of human.