I Secretly Save the World, but My Little Sister Exposes Me?

[Genius] [Apocalypse] [Saving All Humanity] [Hidden Protagonist]

At first, nobody paid attention to this livestream, not until the disaster became everyone's concern.

“What? You're saying my brother's secretly saving the world...?”

“No way. My brother's just an ordinary guy!”

During a livestream, Fang Siyu accidentally discovered that her brother Fang Chen had calculated when the Abyss would invade, and had declared it humanity's doomsday.

In front of everyone, Fang Chen crafted weapons by hand that far surpassed current technology, dealing devastating blows to the Abyss time and again.

As the Abyss evolved, Fang Chen led all of humanity into a new era: from being utterly defenseless to arming every citizen, from fighting the enemy with their bare hands to gods descending...

In the struggle between humanity and the Abyssal invaders, Fang Chen gave everything he had, until he broke through countless Abyssal monsters and reached the summit.

But Fang Chen never realized that everything he did had long been known to all of humanity.

“Fang Chen, we won't let you fight alone! All of humanity has your back.”

“I used to think there were no gods in this world, until Fang Chen appeared.”

“Fang Chen protects all of humanity, and all of humanity will protect Fang Chen!”

And so began a battle in which all humanity united to resist the Abyssal invaders.