What Should I Do If I Wear the Wrong Book?

A high-tech creature named System told me that I would travel through a fairy tale and become the first male. Unexpectedly, the weather was abnormal on the day of the journey, causing me to travel through the wrong book! How should I survive if I travel to ancient times? Fortunately, the system told me that as long as I complete the tasks specified by the system, I will be rewarded! Wait for me to show my talents in ancient times... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.