Heartwork: Symphony of Destruction  

Heartwork, Heartwork - Love Guns, HEARTWORK Symphony of Destruction, 하트워크 파괴의 심포니, Heartwork: Love Guns

The gun in question is a deadly weapon that has been known to cause people to deviate from their normal behavior. On a certain day, Asakura accidentally obtains the gun and finds it inside a bag with cash and a video requesting an assassination of a person by a mysterious figure called "the hunter." The owner of the original bag was actually the hitman who had been hired to carry out the assassination. Asakura and the woman angel of puzzle team up to track down the target, but it's unclear whether they are playing a dangerous game or if this is their destiny.