Evolving from a chicken to invincible

Lin Yu crosses into a beast-tamer world and turns into a discarded F-rank chick with ancient phoenix blood. He gains a Devour Evolution System and makes a contract with Bai Shihan, a talented yet bullied beast-master. Devouring monsters, he evolves step by step into the immortal phoenix. Together, they beat rivals, win tournaments, fight the evil Abyss Lord, and save the whole city from devastating beast tides.