From the Start, My Spiritual Root Was Stolen, but the Divine Emperor Vowed to Protect Me for 30,000 Years

From the start, the Divine Emperor showers me with bloody torment, then dotes on me alone for thirty thousand years.

Through past and present lives, we wield our swords side by side. We envy no immortals, only mandarin ducks in love.

A fantasy romance with a love interest who grows up alongside the heroine. He dotes on her to the very end, with none of the usual pitfalls.