Toki no Tabibito

Synopsis

One day, Hiro Utano, who works at a research institute, is suddenly caught up in a mysterious phenomenon. When he woke up, he found himself in a desolate post-apocalyptic world infested with terrifying creatures! But Hiro obtained a strange gun called "ES707" that can go back in time. Using this gun, Hiro embarks on a journey through time in order to meet his beloved Emma again! Through encounters with various survivors of this post-apocalyptic world, enduring harsh battles by repeatedly going back time, Hiro gradually discovers the mysteries of this world and approaches the truth behind them... What exactly happened to the world? Will Hiro be able to safely reach "Day 0", the beginning of everything?