First of all, even if Zhou Tian's strength is strong, it is not easy to capture a castle. Thus, although confident in achieving his goal, he needs to make extra preparations when dealing with the castle to ensure his action is without accident.
Moreover, after several expeditions, although not yet at the same stage as before, Zhou Tian needs to prepare for his future actions even before capturing any castle.
Undoubtedly, relying on his strength, Zhou Tian is confident in capturing a castle without any problems. However, after capturing a castle, there will still be many things he needs to do. Those tasks will indeed require significant energy and time in the future. Hence, knowing he will face these tasks, Zhou Tian will inevitably prepare ahead of time.
Once he occupies a castle, what will he do then? Zhou Tian had considered this from the beginning.
