This anime is about a wind of rust blowing in Japan, and people living in fear of rusting their towns and lives extremely difficult
As a young man of the taboo "Mushroom Guardian" family, when his master was about to die, Chixing Bisi tried to save him. His master, who is about to die, embarked on a search for the mushroom elixir that can purify all corrosion. During the journey, he accidentally met a very beautiful young doctor, which proved that the doctor is also looking for the same method to treat the extremely severely corroded sister, the two teenagers joined hands to start a new adventure for their beloved.
I encountered many difficulties along the way, and I crossed many obstacles without fear of hardships, and finally found the elixir to help myself The master and sister successfully resisted the erosion of rust. That is, during the difficult and dangerous journey, the two teenagers stumbled and walked hand in hand all the way, seeking the hope of life for the one they love, defying hardships and dangers.