A Hiro In Time: The story of an ordinary guy in an extraordinary situation

This is the story of a man named Hiro who unexpectedly goes on an adventure through time! Follow Hiro as he travels through time while wearing a fundoshi and befriends a cast of characters including a gladiator, an alien and even a dinosaur! Three questions will be answered: Why is Hiro in his underwear? Why is he traveling through time? What is happening?