起初，不死是被投放到大地上的“球”。擁有「能變化成令其受到刺激之物的能力」和「即使死去也能再生的能力」。它從球變成石頭、狼以及少年的樣貌，但仍然如幼兒般一無所知地徬徨。不死將會從自己所遇到的人們身上，得知生存的方法，了解溫暖的感情，模仿人類而不斷成長。與宿命之敵·敲門者的壯烈戰鬥，以及與重要之人的離別…本作描寫了在忍受痛苦的同時選擇自己的生存方式，堅強生存下去的不死的永恆旅程。

利維亞的傑洛特是受雇的變種狩魔獵人，他在一個混亂的世界裡踏上命運的旅途。在這裡，人類往往比魔物還邪惡。

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.