What! Am I a Maggot?

I was reincarnated into another world, but unexpectedly I became a maggot. I almost died from the mouth of a sparrow when I opened my eyes. I finally transformed into a fly, but was beaten by a chicken and couldn't take care of myself. All of this was too difficult for me... Fortunately, I have the system at hand. Let's see how I can change my destiny through the system and let the world in this other world rise and fall for me! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.