It is a very ordinary geek university and Naobumi Iwatani, led to the one book that I met at the library would be summoned to a different world. Given mission, sword, spear, bow, one of the Four Holy hero that wears the shield as a “hero of the shield”, woe to shake off the “wave” to bring chaos to the world. Inflated the chest in large adventure, Takafumi that traveled along with the fellow. However, met with betrayal by a few days from starting, gold also stand also lose all. Naofumi no longer believe others will causative girl-Rafutaria of slaves, to wave, to the world, but when you confront -. Really, you can not seem to overcome this hopeless situation? Upstart fantasy man who lost everything, opening.