Time Leap Revolver Complete Revenge

Synopsis

Officer Seigi Wakaba joined the force to hunt down those who massacred his family and abducted his sister. After years of dead ends, a cryptic letter from his sister leads him to a rusty revolver. He turns it on himself, but instead of dying, he is hurled back in time moments before the tragedy. With a gun that shatters the timeline, he aims to stop the massacre, discovering the masterminds are his neighbors and colleagues.