In Chinese mythology there was a mysterious creature that could transform between the forms of a giant fish or a great bird. The fish form was called Kun and it lived in the northern sea. The bird form was called Peng and it had wings as colorful as the skies. Whene there were storms brewing in the northern sea, the Kun would transform into a Peng and fly to the southern sea.
"A giant bird of Chinese lore. They are so huge that it is impossible to tell their actual size. They can fly 30,000 miles into the sky, and their wingspan is as long as the clouds."
—Shin Megami Tensei: Strange Journey Compendium
Devil Survivor 2
"A giant bird of Chinese lore. They are so huge that it is impossible to tell their actual size. They can fly 30,000 miles into the sky, and their wingspan is as long as the clouds."