Fantasy: I Am a Villain in All Realms

According to the principle of conservation of energy, I eat, continue to eat, eat, continue to eat, eat, so I am not fat. Until one day, I had a system... So I was less likely to be fat, so I became stronger, so I did what I wanted to do - wherever I went, the center of the world was where I was writing a book for the first time, which might pull me apart. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.