Librale of reincarnation

In order to protect the person he loves most, Johan Liebrall killed the world’s strongest hero. In doing so, he became an enemy of the world and is now a hunted man. Johan possessed an overwhelmingly overpowered cheat ability— [The Power to Rewind Time] . However, once his ability was discovered, countermeasures were developed against it, and assassins began targeting him with every means imaginable. Can Johan defeat his worst enemies and successfully protect the heroine?