Apocalypse: God-level Zombie Synthesis System - Chapter 6

A good-for-nothing man married a beautiful girl but was kicked off the bed on the wedding night. Furiously, he wrote a bill of divorce and ran away.
He was schemed a car accident in which he nearly lost his life. However, it turned out to be a blessing. He swallowed the soul that passed through the outer world, thus obtained superb medical skills and martial arts.
Later on, with the silver needles and invincible martial arts, he embarked on the road of counterattacks and was committed to his great dreams.

- Description from Novelupdates

killed by his own family. He wishes for a second lease on life after realising how pathetic he was. Much to his shock his wish is granted and he is given a second chance at life, one he refuses to waste. How will he fair in a world filled with gods and other powerful beings? Gamer fic. Grey mc. Angel.

Akari Nakamura isn't what anyone expects from an S-Class mage.With her stylish fashion and an attitude bigger than her platform heels, she's used to being underestimated. It comes with the territory. But after scoring the highest marks ever recorded on the Arcane Assessment Test, even Crescent Moon University's stuffiest professors can't deny her raw power.Too bad they're going to try anyway.As Akari navigates a world of old money and older magic, she discovers that the university's prestigious facade hides an ugly truth: they're systematically undermining students who don't fit their “traditional” image of what a mage should be.To win here, she'll have to make some powerful enemies and prove herself every step of the way.Oh well. Just another day in the life of the S-Class Gyaru!---A light-hearted yuri/futanari GL novel!

[The false necromancer has insufficient soldiers and is being ostracized and hunted. ]

[The real necromancer, countless skeletons, become the overlord of one party. ]

After Wu Heng obtained the double portal, he discovered that the original world was full of zombies.

When a gangster’s plan fails, another plan to survive begins.

Wu Heng chose to become a ‘Necromancer’.

Is it not allowed to summon the undead from another world? In the last days, the entire planet is a source of soldiers.

Can’t survive in the zombie world? Then I will live in another world and learn skills.

From then on, an undead army equipped with modern weapons appeared in the world.

Natural disaster strikes, millions of skeletons.

Immortal Bone Dragon, King of the Undead.

(Double portal + necromancer + magic + fantasy world + undead natural disaster.)

- Description from novelbuddy