MTL - Young Man, You Are Too Young, Too Simple - Chapter 105

An alien race invaded the Earth on June 6, 2128. At the midst of this war, many nations allied with the alien threat and the war nearly wiped out the rebelling humans of the planet. At the edge of mankind's survival, the United Nations Army launched its forces to eliminate the immediate stellar threats that loomed over Earth.

General Seeker Carlean, commander and leader of the mission, risked and gave his life to destroy the immediate stellar threat. The battle was won though Earth lay in ruins. Perhaps mankind will live to see a few years of peace before the alien threat returns to wipe out their existence.

At the immediate aftermath of the stellar battle, the fallen Seeker Carlean awakens and finds himself at aged 17, living the peaceful life he lived 16 years before he died.

So begins a new game in the battle for humanity's survival.

Kaden awakens once again at the dawn of Earth’s cataclysmic “System” invasion, armed with haunting memories of his previous nightmare life. Desperate to overturn his grim fate, he sets his sights on a special druid class—only to unlock a legendary hidden class!A druid who had to devour to become stronger!With every enemy he devours, the madness increases. The nature twists and contorts in his presence. Plague spreads where he goes. The cursed forests become his grove.Would the fallen druid be able to face the twisted alchemist who once enslaved the entire planet? Can Kaden master this cursed power to save humanity—or will it consume him, turning him into the very evil he seeks to destroy?

Shen Qingxian is the Honored Lord Lianhua, only lacking ascending to the heavens.

Gu Jianshen is the Demonic Emperor Jiuyuan, only lacking destroying the three worlds.

Everyone believed that a meeting between Shen Qingxian and Gu Jianshen must result in a war spanning the three worlds, the two of them dueling to the death.

Until Shen Qingxian went through a hundred years of closed-door cultivation, and spied upon heaven’s mysteries.

Words of heaven’s mysteries: For ten thousand years, no one in the cultivation world has ascended to the heavens. This is because the Heavenly Staircase has long since collapsed. The only way to set this right is to follow the directions of this jade scroll.

Jade Scroll Writing: First, meet with Gu Jianshen. Second, drink and get drunk together with Gu Jianshen……. Thirteenth, pass a ‘spring night’ together with Gu Jianshen…….

Shen Qingxian: “……”

- Description from Novelupdates

In this world, Planet Earth had undergone great changes and humanity is faced with extreme danger. Luckily, humans have something called the Heaven Dao software.