Durarara!! SH, Vol. 3 (light novel)

A year and a half after the disbandment of the Dollars, the streets ofIkebukuro are
plagued by a series of assaults. And the person behind theattacks is...a character from
an anime set in Ikebukuro?! Meanwhile, Yahiroand company set out to stop the
Ikebukuro crime spree at the behest of Walkerand Erika. And as the incident
escalates, the Headless Rider can't help butbe reminded of the incident involving a
certain slasher...