The assignment work that became popular at the Jump+'s "Million Tag" serialization contest project is now available in a complete manuscript!! In a distant future, the earth has been destroyed by aliens. Keigo, a survivor of the human race who wants to kill the aliens more than anyone else, and Décolleté, the strongest alien who doesn't know what to do with her boredom. What sprouted the moment they met is pity, hatred, or love...? The counterattack by just the two of them begins.