Reborn as a Black Cat, I Raise a Contract Girl!

Lin Wu transmigrated to a supernatural world where the Abyss had descended and animals had mutated. Here, humans awaken their talents at eighteen and become Awakeners, fighting back against the threat of extinction. But Lin Wu discovered... that after transmigrating, he had become a black cat? Fortunately, he activated the Bond System. The stronger his contract partners became, the greater the rewards he received, including even rule-based abilities! "Time Reversal", "Supreme Authority", "Eyes of Submission", "Shadow Sovereign"... As Lin Wu collected one rule-based ability after another, he found himself standing at the pinnacle of the world before he knew it. What black cat? Call me the God of Rules!