Story
Decades have passed since the Earth's magnetic poles disappeared, changing the balance forever. As the last remnants of humanity huddle in their bases, the remaining lifeforms have mutated into so-called xenogens and taken over the outside world. In the midst of this war for life or death, a sentient mushroom lived his little life in the forest. That is, until humans came and took something precious from him — his spore. With his life's purpose gone, the young xenogen is ready to risk his life to reclaim it.
Synopsis via AniList (English).
