Apocalypse Asura: I Have an Ancestral-Level Slaughter and Recycling System

In the year 3100, a black demon star invaded the Milky Way. The nine planets merged into one, long-sealed viruses ran rampant, beasts became monstrous, and countless humans died. At that time, the vanished Atlantis reappeared, the three immortal islands of Penglai emerged, and the subterranean world opened up. Cultivators and the surviving elite came to rule the new world, establishing six great alliances. Chen Fan was an ordinary 19-year-old tough guy who had survived death 99 times. By chance, he obtained the Ancestral-level Asura Slaughter and Recovery System. From then on, he became an esper in the eyes of cultivators and began a life of slaughter and leveling up across both the surface and subterranean worlds. [System + slaughter + light harem] Please go easy on me.