Durarara!!

Season 1, Episode 16

Episode Title: Mutual Love

Air Date: 2010-04-30

Overview:

Anri is targeted by the Slasher, but Kyohei’s gang moves to rescue her. Shizuo and Celty join in, and after defeating the Slasher, reveal his true identity. However, this moment of relief doesn’t last as Celty reads what has been posted in the chatroom.