C4740 Unsealed Realm

Chu Yan swore to the Great Dao of Heaven and Earth, in the name of the Emperor of Nine Realms and the Lord of the Human Race... As long as they were all in the Sealed Realm, he would not attack any of them. Even if he was going to be killed one day, he would do it openly and openly until the three forces were unsealed.

The key was that Chu Yan opened up the universe by himself