Description:

The hero's son and the ghost of the Demon King are the master and pupil!? Eirth, the son of the hero who defeated the Great Demon King, is troubled.Always expected to achieve great things, but unable to meet those expectations.No matter the effort he puts in, and the results he obtains, it's never enough for them."I'm a disappointment compared to my father" or "Don't you know you're the son of the hero!!"Living every day like this, Eirth meets his destiny in the room containing the sword of his father, the hero."Interesting. I will train you. I have only free time now.”Eirth receives special personal training from the Demon King just to get back at his parents and the world.In the coming days, his parents, the heroes of the past, his first love, the princess childhood friend,the geniuses of the era, and the world will tremble before him. (Source: MU)

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)