Description:

Naofumi Iwatani, an uncharismatic Otaku who spends his days on games and manga, suddenly finds himself summoned to a parallel universe! He discovers he is one of four heroes equipped with legendary weapons and tasked with saving the world from its prophesied destruction. As the Shield Hero, the weakest of the heroes, all is not as it seems. Naofumi is soon alone, penniless, and betrayed. With no one to turn to, and nowhere to run, he is left with only his shield. Now, Naofumi must rise to become the legendary Shield Hero and save the world! (Source: One Peace)

Description:

The continent Murgenia, where they master swordsmanship and magic: The small country Sunkwoll is in a tight spot because it's under attack of the great country Zarmine. But the general, Rain, who's reputed to be an exceptionally gifted swordsman, is against the war and won't enter the battle. But how is one supposed to wage a war like this anyway? (Source: Storm in Heaven)