MTL - Valkyrie of the Marvel Universe - Chapter 4 This sect is forbidden to reveal the exercises privately

The once most powerful ancient forbidden divine art, the Ancient Dragon Elephant Technique has been lost for millions upon millions of years.Countless years later, youth Lin Feng who was down on his luck, managed to obtain the number one ancient forbidden divine art, the Ancient Dragon Elephant Technique by chance.When Lin Feng departed from a tiny city of the northern-most area in the world, a legendary story would begin.This is a world with experts as many as the trees in a forest, a world where different races vyes for supremacy.Who shall rule over destiny in this boundlessly vast land?Depending on the Ancient Dragon Elephant Technique, Lin Feng battle the heavens and fought the earth, sweeping aside all experts with dominance, tyrannically ruling the myriad realms.

He was on his way to buy some beer to celebrate his acceptance as a civil servant when he was suddenly isekai’d by truck-kun.

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.

An average man is reincarnated in the world of DxD! How do you survive in a world of battle-hungry monsters? With a cheat skill, of course! Devour the competition, becoming stronger with every fight! From the depths of the Familiar Forest, the Beast King will rise. (Harem, Gamer!SI)