Devouring Evolution: Start with Snake

[Adventure + Devouring + System + Fantasy + Famous Sword] Feng Xiu traveled to an unknown world and became a snake. Because of a fruit, he obtained the Devouring Evolution System and started his evolution from then on. By chance, he entered the Nine Secret Realm and became a python... Travel across Kyushu, become an anaconda, become a dragon, become a dragon... In troubled times, settle down and achieve a legend.