Don't Let That Monster Go

Bai Yuanming traveled through time and became a small medieval lord who pioneered the New World. However, this place was neither the development of the earth nor the Americas. It had neither BIUBIUBIU's magic nor the heaven-defying cheating system. However, when he was struggling, he discovered that although there was no magic, there were all kinds of unscientific fantasy monsters in the New World. So Bai Yuanming had a crazy idea. Monsters are not experience points, monsters are technology trees! Monsters are the primary productive force!