Harem-Powered Kingdom Building: Empire of Carnal Sin - Chapter 13: Zero Thinking, Only Bonking

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

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

Lugh woke up to find that he had transmigrated to a hundred million years later.

Song Yun had given the best years of her life to Gu Yuanzhou, helping him reach the pinnacle of his career, bearing him sons and daughters.

On the night that she died in the raging fire, he was entwined in a passionate moment with his shining moonlight.

Only in death did she realize that she was nothing more than a tool to him.

Upon reincarnation, she vowed to take back all she had given him…