Warhammer: the Changing Princess

In the depths of the endless chaos of subspace, Tzeentch, the god of change and lies, transformed into a mortal girl, Mu'er, in order to escape from the god's eternal blind instinct. He used the power of the Eldar god, the Dark Prince Slaanesh, to inject a precious "humanity" into himself. After six hundred and sixty-six cruel reincarnations. Finally, in her last life, she completed her demonic ascension and returned to the subspace. The price of reshaping his origin was that he entered into an eternal covenant with the Prince of Darkness and became his most loyal and intimate wife. From then on, Muer took control of the dual powers of change, destiny, pleasure and pain, but she was willing to position herself as the most obedient little wife around the prince. Now, she has real reason and grand strategy. Her ultimate goal is no longer simply "change", but to turn pain and joy into an eternal spiral in endless changes, pushing the entire subspace to a new and unknown realm. PS: This book is also called "Tzeentch Falling in Love with Slaanesh". This book is a modified version of the Warhammer universe, with pseudo-invincibility, both fighting and farming, full of Hammer flavor, and containing private goods.