Aru Hi, Bakudan ga Ochitekite (Volume)

is the first volume of the Aru Hi, Bakudan ga Ochitekite light novel series, written by Hideyuki Furuhashi and Illustrated by Yukari Higa. It was released under the Dengeki Bunko Imprint in October 2005.

Synopsis
"Isn't it a human being, a" bomb "?" "Yes, that's right. It's the latest model ~". One day, a 50-gigaton "bomb" that fell from the sky resembled a girl who had been sneezing for some reason, and a timer was making a clicking noise in her chest- "a new bomb dropped in the city center." Including the title work that depicts "Dating with", "A strange disease that regresses memory every time you sneeze", "Dead girlfriend who asks every night", "Small god living in the library", "Classmate without body", etc. Seven warm, funny and slightly sneezing boy meets girl presented by the genius Hideyuki Furuhashi. A newly written short story that was published in Dengeki hp has been added to the paperback.

(source: Amazon JP - Translated)