BUMP

is a Japanese light novel series written by Takehiro Arihara, with illustrations by GUNPOM. The series began publication on March 10, 2003 by ASCII Media Works under their Dengeki Bunko publishing imprint.

Synopsis
The owner of the antique shop "Mystery Shop" died mysteriously. The corpse is said to have been shredded to the point where it did not retain its original shape and was left in a sea of ​​blood. Police concluded that the damage to the corpse was not torn by a knife, but was the work of a large carnivore. A few days later, a similar murderous body was discovered at the high school where the main character, Sakurako Takayama, attends. A female member was killed in the club room of the swimming club. Sakurako, along with her bad friend Goro Asako, will investigate the mystery of this serial murder case. However, it was an unexpected person who emerged as the criminal!