Iwatani Naofumi is summoned to another world to become one of the 4 heroes, namely the Shield Hero. Starting out with poor popularity and labeled as the weakest, Naofumi found himself betrayed on the 3rd day of his adventure. Losing faith and money, all that left is just his shield. Vowing to exact revenge to those who had betrayed him, Naofumi's path is...

manga adapted from the light novel series written by Yusagi Aneko and illustrated by Seira Minami