A Balanced Path
?Web serial by BR Santiago
Terra conquered the solar system during a century-long golden age, then lost it all when Mana arrived. As humanity scrambles to rebuild with mana-based technology, strange elven invaders from beyond overwhelm every defense with their cultivation. Axl lost everything to those elven cultivators — his lunar mining station home, his entire family. He fought back, killing his way into one final desperate mission: a last stand that became a fresh start when crumbling lunar forces implanted him behind enemy lines inside an elven body. Now in a strange world of abundant Mana and a pervasive System, surrounded by elves and sentient beasts in the ruins of a city ravaged by undead, Axl must navigate cultivation in sword, alchemy, and the mysteries of the Dao — all in the hope of giving humanity a foothold in a war of extermination.