Signed into the World of Immortality and Accidentally Became Invincible

[No heroine + Invincible text + Gogogogogogogogogogogogo] After traveling through the realm of immortality, I obtained the invincible Gou God System. As long as I stayed there for one year, I could increase my attributes. So I retreated to the mountains and began to practice Gou Dao. In ten thousand years, I have survived the devil. In a hundred thousand years, I have survived the immortality. For millions of years, I have endured the death of God. After that, the path to ascension in the world was cut off, and I chose to continue living without hesitation until a group of cultivators opened my coffin...