Beside the evergreen forest on the edge of the Kanto region, the orphan Anyang grew up under the care of his kind Grandma Lizi. When he was fifteen years old, fate gave him a heavy "gift" - his grandmother, who depended on each other for life, passed away suddenly, leaving only an empty cabin and endless thoughts. The only solace was the seriously injured and dying Bobo he picked up in the forest not long before his grandmother passed away. Anyang tried his best to save it, and the bond forged in despair became the glimmer of hope for his survival.
However, the reality is as cold as iron. Anyang, who had lost his support, resolutely stepped into the gray area of the Pokémon world in order to survive and to pursue some answer that even he could not explain - he became a **Pokémon Hunter**. This is not a path full of honor to challenge the alliance, but a dangerous path walking on the edge of law and morality. He and Bobo, who has evolved into a powerful and powerful eagle, are both partners who depend on each other for life, and they are also cold and sharp blades for carrying out missions. They accept commissions to track, capture and even rob rare Pokémon in exchange for money and information in the shadows. Anyang's heart is struggling between the cruelty of life and the torn apart of the innocent emotions for grandma and Bobo. He hunts Pokémon and is hunted by shadows from the past. In the dark alleys of the steel city and the dangers of the wilderness, the name "Hunter Anyang" gradually sounded, and the boy who shared the fruit with Bobo by the evergreen forest seemed to be drifting away... What kind of hunter will he eventually become? Where will the sky under Bi Diao's wings take him?