At this moment, Zhang Yanhang's heart looks like some kind of mechanical heart crafted from a science fiction worldview, but it is a supergiant heart. After all, the diameter of his heart alone is now equivalent to several Gundams stacked together.
To give a more realistic example, it would take the size of two basketball courts combined to be about the size of Zhang Yanhang's heart.
Although this mechanical heart looks very cool, Zhang Yanhang still chooses to hide it, leaving only his original heart visible.
To be honest, the small nuclear fusion reactor of the sixth tier might have relatively high defensive power in the fourth tier, but once he advances to the fifth tier in an hour, the defensive power of his heart can definitely easily surpass such a legendary piece of equipment as the small nuclear fusion reactor, which is only at the early stage of the sixth tier.
