From A Stronghold NPC To The Final BOSS - Chapter 766 - 765-transforming cultivation technique

Naofumi Iwatani, an uncharismatic Otaku who spends his days on games and manga, suddenly finds himself summoned to a parallel universe! He discovers he is one of four heroes equipped with legendary weapons and tasked with saving the world from its prophesied destruction.

As the Shield Hero, the weakest of the heroes, all is not as it seems. Naofumi is soon alone, penniless, and betrayed. With no one to turn to, and nowhere to run, he is left with only his shield. Now, Naofumi must rise to become the legendary Shield Hero and save the world!

Li Hao: What? Someone jailbreak? Huh? Why is there an exclamation mark on the reward notice?

[Click on this reward notice to get the location information of the jailbreaker~]

Li Hao: There is an exclamation mark on this scratch pad?

[Scratch this card and you will win a prize, don’t miss it~]

Li Hao: There is actually a question mark on this box of pills?

[This is a box of life-saving pills, which can save the life of an old man. The host can receive the task and go to a fixed location… and you will get an unexpected surprise~ Do you want to receive the task? Yes! no! 】

Li Hao: Can you still receive the mission? Eh…that person also has an exclamation point? Huh? This dog actually has hints~

[Ding dong, congratulations to the host, for completing the task, you will be rewarded with a villa worth tens of millions…]

[Ding dong, congratulations to the host, complete the task, reward a Bugatti Veyron…]

- Description from novelbuddy

The story starts on earth, after some unknown circumstances, the world was suddenly invaded by monsters from other worlds. Many died and even more turned into zombies, starting what many would call 'The apocalypse Era'.

Rin, a normal teenage boy who lost all of his family members was on the verge of falling into despair when a goddess appeared and sent him to another world that was very similar to a game Rin played before the apocalypse.

Her goal from this was simple, trample on all the protagonists and become the strongest creature in that world for a chance to get back what he thought he lost forever.

Accompanied by a cold beauty, both of them embark on a new journey to become stronger, get back to their world and fix everything.