MTL - Princess Medical Doctor - ~ Sorry, 975, can't accompany you to the end.

Traveling through different worlds – this is unscientific!

Get cheats – it’s science!

…

This is a simple story. An ordinary person lives in a different world, farming and raising flowers, studying unscientific science in his free time.

until the end.

- Description from novelbuddy

Tang Zhen transmigrated to an apocalyptic world, where humans struggled to survive in various buildings that they built because the ground was covered in lethal dangers that were invisible to the naked eye. Tang Zhen transmigrated along with his mutated cell phone that was packed with miraculous applications.

There were all kinds of cities – some could fly in the sky, some could submerge into the ocean while some could become invisible – and shocking secrets were hidden within them.

The power of Tang Zhen’s city was…

He established a city and quickly leveled up his army with speeding tools. Then, he dominated this alternate world by seizing other cities.

He sat at the very top. Beneath his feet was a vast floating city guarded by dragons and surrounded by angels. Countless cannons were also set up at various corners of the city.

A million miles ahead, in the depths of the ocean, there was another city as large as a continent awaiting his conquest.

Alex was just another ordinary gamer—until the day he died. Struck down by a terminal illness, he found solace in his favorite game, a vast fantasy RPG filled with powerful warriors, intricate politics, and world-shaking events. But before he could see the game's ending, fate had other plans.When he opens his eyes again, he’s no longer Alex from Earth. Instead, he’s Alex Dragonheart, a nameless extra in the very game he once played. Not a protagonist. Not even a villain. Just an unknown side character who was fated to die early, forgotten by history.Armed with only half of the game’s knowledge, an unawakened bloodline, and a mysterious sealed skill, Alex is thrown into a brutal world where strength is everything. His beloved younger sister is sick and needs treatment, but his past self had been powerless to save her. Not anymore.Determined to rewrite his fate, Alex will rise through the ranks, manipulate events from the shadows, and seize power that was never meant for him. If fate refuses to acknowledge him, then he’ll carve his own legend—one that even the gods will fear.After all, in a world where only the strong survive, even an extra can become a nightmare.( Okay guys just because there is a system tag does not mean he will get everything handed to him he will have to work hard to attain power because I will make it so )