When you got a drop of water; you should repay with a fountain. This was what Zhang Tie's parents taught him since he was young, not to mention this time when Heavens Fortune Sect really helped Zhang Tie's family tide over the toughest period. Therefore, Zhang Tie appreciated Heavens Fortune Sect sincerely with such a decisive promise instead of being perfunctory. It was Zhang Tie's first time to make such a sincere promise.
Although Zhang Tie's family hadn't experienced any big trouble during those years when the knight of Heavens Fortune Sect was over there; neither did this knight fight for Zhang family once. Actually, at that critical moment, only by enrolling Zhang Tie's sons as apprentices and assigning an earth knight to Zhang family could Heavens Fortune Sect frighten those evil forces who wanted to find Zhang family trouble.
