COTE : Backed By Black Technology System - Chapter 11 - : Respect for Unknown Technology.

Her brother, who was the one who caused a coup d’etat, had sliced her throat. After she returned to the time before she died, she decided that she would somehow tame him and survive!

But..

Did she tame him too much?

***

“Brother, why don’t you get married?”

There was no reply from him, instead the glass that he held popped and cracked.

“Oh no! You’re bleeding.”

“Why should I get married?”

“Eh?”

“I already have you.”

Why should you get married, you say? You have to get the Empress so I can leave this castle! Sezh laughed strangely.

“Sezh.”

At that moment, she stumbled and Raytan pulled her body into his arms. His red eyes started to gleam suggestively while looking down at Sezh who was trapped in his arms.

“You know we are not real siblings.”

In the winter of Taikang Year 3, a girl pays a visit to her future in-laws, the Ning Family of Beiliu, Yangcheng.

After her engagement was denied, the girl decided to hang herself in front of the Ning Family to show them her sincerity.

When the girl who had died opened her eyes once more, many people’s fates were changed forever.

- Description from Novelupdates

In 2120, a massive gateway that connects Earth with the Otherworld replaced the Aels boulder in central Australia. The Earth, representative of science, and the Otherworld, representative of magic, subsequently made contact and two wars broke out. Both wars inflicted enormous damage on both sides, eventually leading them to choose peace negotiations, and thereby marking a thirty-year era of peaceful exchanges between Earth and the Otherworld.Even though both sides chose to coexist peacefully, they each coveted the other's benefits. With the impending arrival of the third inter-world war, Earth's Otherworld combat General Staff Headquarters decided to secretly dispatch an advance team to the Otherworld to conduct pre-war reconnaissance.As a hybrid of Earthlings and Otherworld elves, Luoer, after secretly studying and training for over twenty years in Haiya Academy, which specializes in cultivating hybrids of Earthlings and Otherworld inhabitants, will soon lead his squad into an exciting adventure in the unknown Otherworld.Swords and magic? No, this is a world of guns and magic!