Became the Unjust Contract Slave of the Archamage's Book - Chapter 3

Xia Ning is betrayed by her boyfriend who wants to marry another girl from a rich and powerful family.

An alien race invaded the Earth on June 6, 2128. At the midst of this war, many nations allied with the alien threat and the war nearly wiped out the rebelling humans of the planet. At the edge of mankind's survival, the United Nations Army launched its forces to eliminate the immediate stellar threats that loomed over Earth.

General Seeker Carlean, commander and leader of the mission, risked and gave his life to destroy the immediate stellar threat. The battle was won though Earth lay in ruins. Perhaps mankind will live to see a few years of peace before the alien threat returns to wipe out their existence.

At the immediate aftermath of the stellar battle, the fallen Seeker Carlean awakens and finds himself at aged 17, living the peaceful life he lived 16 years before he died.

So begins a new game in the battle for humanity's survival.

The whole world is subjected to a highly dangerous standardised exam called the Global University Entrance Examination. Answering questions by putting their lives at stake, they would live if they passed the test. Every month the exam will undergo reformation while, occasionally, it is random.

- Description from Novelupdates

Seratus tahun yang lalu, Ordo Cahaya mengalahkan Raja Kegelapan dan mendirikan pemerintahan yang mereka sebut era perdamaian.Namun, di balik senyum para penguasa Cahaya, tersimpan sistem yang menindas. Orang-orang yang dianggap “kotor” atau “berbeda” dimusnahkan atas nama kemurnian. Siapa pun yang mempertanyakan Ordo dituduh sebagai pemuja kegelapan dan dihukum mati.Namun, ada rumor yang mengatakan bahwa sisa-sisa kekuatan kegelapan perlahan-lahan bangkit. Seorang pemuda misterius bernama Kaelen, yang memiliki darah gelap, mulai mengumpulkan pengikut untuk menumbangkan tirani Cahaya. Mereka tidak bertarung untuk menghancurkan dunia, tetapi untuk mengembalikan keseimbangan dan mengungkap kebohongan Cahaya.