Durarara!!x2 Ketsu: Dufufufu!!  

Durarara!!x2 Ketsu OVA, Durarara!!x2 Ketsu Special, Durarara!!x2 Ketsu Episode 19.5, デュラララ!!×２ 結　第19.5話「デュフフフ!!」

Shizuo Heiwajima is known for his good looks, slender physique, and distinctive style of wearing shiny shoes. He is said to be quite powerful in Ikebukuro. When Shizuo Nobusuma hears about these rumors, he comes up with the idea of impersonating Shizuo in order to make life easier for himself. He puts on a blonde wig and goes out in Ikebukuro pretending to be Shizuo. However, as he goes about his business, he soon realizes that people are either taking pity on him or teasing him before they find out that he is not actually Shizuo. His luck takes a turn when he encounters Izaya Orihara, who enjoys causing trouble for Shizuo.

Durarara!!x2 Ketsu: Dufufufu!! adapts a chapter from Durarara!! Gaiden!?, which was released to commemorate the series' 10th anniversary. The OVA was pre-screened in theaters on May 21, 2016 and later included with the sixth Blu-ray and DVD volume of Durarara!!x2 Ketsu, released on July 27, 2016.