Mo Tianxuan didn't stop Su Yu.
What Su Yu said was correct.
If she chased her enemy together with the True Man of the Purple God, nobody would protect these factions that had suffered serious casualties.
She knew her enemy would never miss this opportunity to swoop in.
Therefore, they couldn't leave and had to do their best to protect those who were injured until they fully recovered.
"I failed to protect Bing Wuxin. I am really sorry about that!" Standing on the wooden bird, Su Yu said sadly before leaving. "Please tell Jian Wusheng that I will give her daughter back to her!"
Mo Tianxuan nodded after hearing that. "You should tell her yourself!"
Su Yu nodded as well and left here by driving the wooden bird.
The wooden bird covered tens of millions of kilometers in the void in a short while.
As for Gu Taixu and the rest of the people, it was quite easy to locate them.