After blue heart's condition was put forward, Qi Tian actually only worried about one thing.

the reason why he wanted to stop the North emperor was that he didn't want to see a lot of demons fighting each other. At present, demons are not suitable to weaken their power. The powerful king of the boundless demon controls the whole world of the boundless demon. On the surface, it is also a kind of unity. The power of the dark surge will not be less. The North emperor is the most obvious example, but as long as the king of the boundless demon does not fall, this relative peace can continue...