Neither Zhang Tie liked nor disliked the crown prince of Taixia Country.
As the crown prince's master was Meng Shidao, they were on the same side. However, given the relationship between Meng Shidao and Huaiyuan Palace, as the offspring of Lord Huaiyuan and the grand elder of the Zhang family, Zhang Tie was not on the same side with the crown prince.
Whereas, Zhang Tie didn't dislike the crown prince, because the crown prince always enjoyed a good reputation across the country. Zhang Tie had never heard any immoral incidents about the crown prince. Additionally, demons were invading Taixia Country. Zhang Tie admired him more or less as the crown prince could carry the heavy burden in Xuanyuan Hill and stabilize the overall situation of Taixia Country under that circumstance. At least Zhang Tie was not that patient to do that if he were the crown prince.