Durarara!!

Season 1, Episode 17

Episode Title: Everything Changes

Air Date: 2010-05-07

Overview:

As Anri faces off against Haruna, truths about her past are revealed. Elsewhere, Shizuo fights an unending battle against the Slashers in South Ikebukuro Park. As he defeats them one after another, his expression starts to take on a hint of joy.