Save the Devil

In order to save the person she once secretly loved who has become the devil, what should Kang Yaxuan, a mortal, do? Can the friends she made in heaven help her get the magic weapon to rescue the devil? And will the demon spirits who have restored the Demon Realm's status in the Three Realms give up their status? Or will he take up his own weapons to deal with Yaxuan and the others? Can Yaxuan finally bring back the child's heart? Let Shuiwu lead everyone to unravel everything.