The fourth realm was different from the Hongmeng. Qing Yu was present in the third realm, so she could guide the immortal dao from the world of immortals through the chaos and into the Hongmeng.

The fourth realm, however, was too big.

A tiny immortal dao entering it was no different from the hair of an ox drifting into the fourth realm. There needed to be the seeds of immortal dao here—formula dao!

Formula dao could meld with the immortal dao and could also be its own dao, not to mention that it was the creation of the Dao Sovereign herself. It could completely assimilate into the fourth realm and be available for fourth realm denizens to cultivate.

Once formula dao blossomed in the fourth realm, it could facilitate immortal dao from the Hongmeng to travel into Boundless...