Actually, the real reason was that it was very difficult for him to kill her at the time.

As the Northern Sky King’s daughter, how could she not have some treasures to keep her safe? As soon as his sword pressed against her forehead, he’d sensed a strand of energy lock onto his sword.

It wasn’t coming from the old man; it came from Bei Cangyue.

Of course, if he risked his life, he was still confident in his ability to kill her. However, it would waste too much time. ...