I Get a Billion Years of Cultivation from the Start

Lin Hai is reincarnated into a high-martial alternate world where gods and demons coexist. He accidentally activates the mysterious Myriad Treasures System, which directly rewards him with a billion years of cultivation. Guided by the System, Lin Hai adopts two orphans and, as he continues to comprehend his cultivation, leads them down the path of cultivation as well. The Demon Realm invades, gods and demons wage war, and the world falls into ruin. More and more powerful figures flee the fighting and hide in Lianyun Mountain, where Lin Hai lives in seclusion. With the Heavenly Dao shattered and the world on the verge of destruction, Lin Hai has no choice but to step in and turn the tide, stabilizing the world's decline. But a new crisis is brewing, and the greatest threat has yet to arrive.