I Am A Tadpole

As an ordinary young man, never imagined that saving an elderly man from an oncoming car would lead to such a bizarre twist in his life.  
After losing consciousness, Su Bai wakes up as a tadpole, stranded in a small puddle teeming with predators and dangers.  He must adapt to his strange new form and survive a brutal world.    
What will become of Su Bai in this strange, unforgiving world?