Durarara!! Re;Dollars Arc Volume 1

'Durarara!! Re;Dollars Arc 01' is the eleventh volume of the Durarara!! manga and the first volume of the Akane arc.

Synopsis
From Yen Press:

Mikado Ryuugamine is just trying to pass his second year of high school peacefully, but when he gets word that someone within the Dollars is causing trouble, that's out the window. Everybody's in trouble: Izaya is scheming, Mikado's classmate knows his secret, and Shizuo is being targeted by a mysterious girl - just another day in Ikebukuro!