A certain scientific accelerator

"Estelle sneaks into Hishigata's lab, planning to take out his ultimate project 'Hirumi.' But before she can get the job done, her plans are thwarted! A bloody turn of events awakens Hirumi...if it truly is Hirumi at all. Now Estelle must face the darkness in her past, which traces far, far back through the Rosenthal bloodline."--Page [4] of cover.