All-Insect Realm: The Evil Doctor's Plan

When a bizarre catastrophe strikes, all of humanity shrinks, and the once-insignificant Blue Star transforms into an endless jungle where humans become insects. Colorful mutant aphids, camouflaging stone centipedes, ferocious red fire ants... danger lurks in every inch of soil and leaf litter, ready to turn you into insect food at any moment. Haha, all book friends have... — Description from novelcodex.org