The Igarashi brothers, Nachi and Toshi, find their lives intertwined with two women from another dimension, Compiler and Assembler. Originally dispatched to Earth with a mission to conquer it through a game of destruction and creation, Compiler and Assembler instead decide that residing in this world is more enjoyable than their assigned task. They take up residence with Nachi and Toshi, leading to the gradual development of relationships between Nachi and Compiler, and Toshi and Assembler, despite their reluctance to openly acknowledge these feelings.
