by Jeongwook Kim (Author), Jaehoon Choi (Author), Yoochul Lee (Artist)

An epic battle is taking place right before our very eyes, noses, ears and mouths! And help is on the way from an unlikely but lovable source. What is this source? Meet Toto, your average boy who takes an extraordinary journey to unpack the fascinating world of viruses, parasites, bacteria and mold! Become a germs expert and triumph!Series features: