Douluo: Through Huo Yuhao, with a Dual-Transmigration Door

When Huo Yuhao awakened his martial soul at age 6, he obtained a dual-transmigration door that could travel between Douluo 1 and Douluo 2, along with a drop of Ancestral Dragon's blood. He developed quietly in Douluo 1, then gained a cheat in Douluo 2. As a result, he successfully exploited a bug, not only merging two divine sense fragments of Elux into a more powerful one, but also obtaining a second million-year soul ring!... Huo Yuhao stacked cheats upon cheats, his second martial soul became the Ancestral Dragon, and soul beasts gained another common sovereign. He established the Symbiosis Pavilion, thoroughly improving the situation between soul masters and soul beasts. Douluo 1 + Douluo 2, but the main plot focuses on Douluo 1; both are the same world, and everything done in Douluo 1 will cause changes in Douluo 2.