Urban Square: Kohaku no Tsuigeki
Japanese title: アーバンスクウェア　琥珀の追撃
Type: OVA
Episodes: 1
Source: Original
Genres: Action, Mystery
Studios: Network Kouenji Studio
Producers: Bandai Visual
Duration: 56 min
Rating: R - 17+ (violence & profanity)

Ryou Matsumoto is a screenplay writer that runs into a man and witnesses his murder. Unknown to him, he gets caught up in an illegal antique ring along with a girl he meets named Yuki. In order to survive, he ends up acting out the "action hero" role that he writes in his screenplays.

(Source: ANN)