The girl, Hasumura, has a relationship with various men in her room, apart from Aniki, who lives with her. What is Aniki who loves to keep insects and Hasumura's unforgettable thoughts? Including the title work "Haruno Insect Bug", the darkness of the heart, absurdity, and the sensual world are depicted with insects and plants in a unique atmosphere. The first short compilation of Mario Tamura's sensual new world, all 5 editions that made a debut with "Social Incompatibility Hole"!