A lot has happened in the real world since the last Shield Hero aired in late July 2019. It actually feels like much more than three years ago…more like thirty! And that’s even taking into account we saw Naofumi, Raphtalia and Filo in Isekai Quartet, the last episode of which aired just when shit was starting to go down in 2020.
Anywho, this episode marks a relatively understated, workmanlike return to the world of Shield Hero, with Naofumi settling in as lord of Lurolona Village, where the old and young, strong and weak alike train for the next Wave of Catastrophe, including his newest party member, Rishia, who rather comically must wear a penguin mascot suit to up her stats.
The relative peace of the status quo is rocked by the sudden arrival of a flock of monstrous bats. Raphtalia and Filo make quick work of them, but Naofumi’s HUD identifies them as “Spirit Tortoise Familiars.” Also, the next Wave countdown has cirously…stopped.
Naofumi and the other Cardinal Heroes are summoned to Melromarc where Queen Mirelia explains what’s happening: the Spirit Tortoise has revived and is starting to wreak havoc on the kingdom that bears its name. However, the other three heroes aren’t interested in assisting. After the meeting Rishia beseeches her former boss Itsuki, who tells her she’s not strong enough to fight for him.
After Naofumi gets Rishia a new sword at the weaponsmith’s, Raphtalia suggests they head to the slave merchant to make Rishia one of Naofumi’s slaves so that she can be stronger than Itsuki’s party members. Naofumi bristles at the idea, as he believes only Raph would volunteer to be a slave.
However, Rishia wants to become stronger, and she’s willing to be tattooed on her decolletage and endure the pain of forming a contract in order to do it. Rishia may be convinced she’s a failure, but if Naofumi and his party can offer her a chance at redemption and to prove herself to Itsuki and her former colleagues, she’s game.
With that, Naofumi’s party loads up the Filo-drawn wagon and journey to the Spirit Tortoise Kingdom to meet this latest non-Wave-related threat. While stopping to camp for the night, Filo reveals her ahoge serves as an antenna for direct communication with her queen, Fitoria.
She tells Fitoria they’re headed for the kingdom, and Fitoria responds that Naofumi will now face the choice she spoke of before: do something about the Spirit Tortoise, but also learn to get along with the other three heroes, or she’ll personally kill them all. Yes Rishia…even Itsuki!
They arrive at the capital of the kingdom as it is already under siege by massive swarms of bat monsters in the air, primate-like beasts on the ground, and scores of refugees running for their lives. They hear rumors that three of the four heroes were already killed going up against the Tortoise.
Filo’s two-way connection with Fitoria pays off again when the queen confirms that none of the three are actually dead; they were just rumors, thus calming Rishia down. Filo and Raphtalia then get to work eliminating the baddies while Rishia leads the people back to the safety of the capital’s walls.
Naofumi ends up using one of his many abilities to lure a huge host of enemies in his direction, then uses Dark Curse Burning to eliminate them all in one fell swoop, though not without bearing a physical cost he can’t hide from the trusty Raphtalia. In the aftermath of the battle, a mysterious, slightly pious-looking woman flat-out asks him to “please kill” her. To quote Rishia … Kweeeeh?