The third season of Tate no Yuusha no Nariagari. 
After defeating the Spirit Tortoise, Naofumi has no time for rest. An attack from the next Guardian Beast is imminent, but the three other Cardinal Heroes have gone missing. So, Naofumi and his party set out to search for the legendary trio. 
(Source: Crunchyroll News)

The second season of Tate no Yuusha no Nariagari. 
 
With another Wave happening in a week, Naofumi Iwatani and his party have no time to waste. However, when bat familiars raid Lurolona Village and the Wave countdown comes to a halt, the Four Cardinal Heroes reconvene with the queen, Mirelia Q Melromarc, for a quick briefing. The queen presumes that the odd occurrences are linked to the Spirit Tortoise—a threatening creature that has awakened from its slumber, back to cause havoc once again. A plan to put the Spirit Tortoise to rest is devised—but out of the four men, only the cursed Shield Hero agrees to help. 
 
(Source: MAL Rewrite)

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 Books)

The fourth season of Tate no Yuusha no Nariagari. 

The Return of the Exiled━ 

(Source: Official Twitter)

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