Written by Jiang Wanzhi & Illustrated by Zhang Yunkai 
Small Fungus with Powerful Skill [EPUB ebook] 

There are a group of mysterious residents in the "microbial world" – they are so small that they can only be seen under the microscope. Besides, they are also very old and one of the oldest biomass on earth. They are everywhere – in the air, on the skin, in the body… Who are they? Let us enter the microbial world and get to know the residents here!