Wo Kao Chifan Zhengjiu Diqiu

An overweight 300-pound otaku was suddenly blessed with a System, and he thought that would let him change his life. But the System was cursed so that he has eat a crazy amount of food every day to stay alive. Furthermore, he also found out that the System made him the queen of a race of alien bugs. Bugs are bad enough, but why does he have to be a queen! Does he really have to follow the System's orders? And destroy the Earth?

(Source: Kuaikan, translated)