As the Minor Gay Love Rival in Het Novels - Chapter 7.6

In the final year of high school, Christian’s ordinary life takes a dramatic turn when he is struck by lightning, awakening the Idle System, a manifestation of his dream.What begins as a personal fantasy quickly transforms into a new reality for Christian, who revels in his newfound abilities while the world around him remains blissfully unaware.However, as Christian adjusts to his extraordinary circumstances, strange and unsettling events begin to unfold globally.Would the genre of the world also become Fantasy or would it stay exclusive to him?

The beautiful Blue Star tragically fell victim to an invasion by enemies from the Otherworld. The globe was left riddled with wounds, but it also presented an opportunity for the Awakening of the Blue Star people—a chance to choose something other than hot weapons. Individuals could use their own strength to slay enemies, amass wealth, and reach the pinnacle of their lives.Ye Nai was lucky enough to awaken in advance, releasing energy spores that could decompose organic matter. He had planned to make a stunning debut during the mass Awakening at school, but results showed he hadn't awakened?!What the hell?I haven't awakened?Then what's this Fungal Mycelium I have that can decompose abnormal creatures?Ye Nai gave a devilish smile.Haha, everything that happens is to my advantage. Whether it's the enemy or abnormal creatures, obediently fall into my hands and become nourishment for my mycelium!

A teenager named Evan Mason was reincarnated into the magical world of Harry Potter and goes to school at Hogwarts!
With only his knowledge of the future and great talent for magic, he takes the path towards the top of the magic world, only to realize that ever step he took, changed everything!

- Description from Novelupdates

[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