ตัวตนอมตะในร่างเด็กชายมนุษย์ออกเดินทางร่อนเร่ไปอย่างไร้จุดหมายบนโลก และลิ้มรสชาติความเจ็บปวดระคนเบิกบานใจ ของชีวิตในเรื่องราวอันไร้ที่สิ้นสุดของตัวเขา

เกรอลท์แห่งริเวีย มนุษย์กลายพันธุ์ผู้กลายเป็นนักล่าอสูรรับจ้างออกผจญภัยไปบนเส้นทางแห่งโชคชะตาในโลกที่มนุษย์อาจโหดร้ายยิ่งกว่าอสูร

In the mysterious future, crystalline organisms called Gems inhabit a world that has been destroyed by six meteors. Each Gem is assigned a role in order to fight against the Lunarians, a species who attacks them in order to shatter their bodies and use them as decorations.

Phosphophyllite, also known as Phos, is a young and fragile Gem who dreams of helping their friends in the war effort. Instead, they are told to compile an encyclopedia because of their delicate condition. After begrudgingly embarking on this task, Phos meets Cinnabar, an intelligent gem who has been relegated to patrolling the isolated island at night because of the corrosive poison their body creates. After seeing how unhappy Cinnabar is, Phos decides to find a role that both of the rejected Gems can enjoy. Can Phos's seemingly mundane assignment lead both Phos and Cinnabar to the fulfillment they desire?

In the present a team of four anthropomorphic dinosaurs, created by aliens, must stop three anthropomorphic velociraptors who want to cause a cataclysm that would speed up global warming and make Earth's climate pleasant for dinosaurs again.