I'm Already at the Golden Core Realm, and the System Is Only Just Here?

Ye An has been in the cultivation world for two years. Thanks to a ninth-grade, top-tier Heavenly Spiritual Root, one so rare that fewer than one person in a hundred million is born with one, he has gone from mortal to Golden Core in less than two years, setting a record as the fastest Golden Core cultivator in the immortal sect. Then, just as he achieves his Golden Core, the System appears.