Douluo's myth of Haotian

Tang Bufan had a bright smile on his face and stared deeply at the Haotian Sword.

Red, red gold, green gold, gold, dark gold, green gold, platinum, gray gold, silver gold, one red and eight gold, these nine soul rings are definitely myths among myths.

But that's not the point. The point is the Haotian Sword Sutra...