The Modern Wife of a Primitive Man Praises His Strong Body

A kind and honest primitive man accidentally traveled to modern times, used time to go back and successfully married a beautiful wife. Using handiwork, the armor was turned into pieces, and the crushing machinery was used to soar. If human beings want to continue, there is only one way to get rid of the weak body and replace it with a mechanical body. Only then can we go further. … The protagonist obtains the [DIY Time and Space Watch] from nowhere and has several heaven-defying abilities. Just one item: creating something out of nothing and transforming energy is very popular, but there is another one: reversing time! . There are such plug-ins. Wouldn't it mean that if you push them horizontally, you will be invincible? But how do you know what kind of enemy he will face? At that time, you will sigh that the protagonist knows so little and is so poor...