Black Rock Shooter Dead Master Dawn Fall Ver. Nendoroid #1907. 
"I won't let you go anymore... This is my love." 
Dead Master comes with 3 face plates (standard, love/hate, and tongue out). 
She also comes with various accessories such as a bike, a boomerage + additional hands and legs for various poses. 
Based on the anime series Black Rock Shooter.
Approximately 3.9" tall.  
Brand: Good Smile Company