"Better not be stripping my sex slaves"?
Uhh... Okay. In a mere 13 chapters we've gone from "Sorry I-I touched you!" to "I won't mate with you without getting to know you" to "I'll fuck you to save you" to "You're my sex slaves".
??? Why regular spears? If they have 4 possible close to each other weakpoints, just use four pronged ones? WTF?? 3000 years and they are using regular spears?
They 're all either 18 or 19, so they only live for 2 years of consciousness. They barely have enough time to learn the basics of their own society. They don't progress and their city is in ruins.
You dont need more than 20 years to come up with the idea of using a spear with four prongs. Even a dumbass could come up with the idea of shoving four fingers in four holes instead of shoving one finger at a time.