Only a week has passed after the fight in the mines, but Naofumi and Raphtalia have leveled up to a respectable degree. The armorer says as much, and all the extra discounts and freebies the demi-human gets confirms to Naofumi that this world is full of lolicons.
Still, he seems pleased that Raphtalia is less timid and is now able to stand and speak up for herself. She even negotiates to get new custom-made armor for Naofumi that he thinks makes him look like a bandit, but also doesn’t want it going to waste.
It’s a good thing they mentioned the Waves to the armorer, because he points them in the direction of the church where the Dragon Hourglass counts down the time until the next Wave, which will come in less than a day.
Unfortunately the other heroes are there, and the Spear even tries to steal Raphtalia away, but she rebuffs him. They can mock him all they want and even bring up the “rumors,” but Naofumi won’t say a single word of attack or defense. He’s long since done talking with these assholes.
Raphtalia wants to know what happened between her master and the other heroes, but Naofumi isn’t ready to tell her. Regardless, when dawn breaks and they prepare to be transported to the location of the Wave, Raphtalia formally reiterates her undying loyalty to Naofumi. She is only alive because of him, and so she’ll be his sword and never leave his side.
After transport, Naofumi gets a close look at a Wave of Catastrophe for the first time. The other heroes rush ahead, but he notices they’re leaving a nearby village unprotected from the hordes of undead soldiers and swarms of giant wasps.
So he and Raph head there, he orders Raph to evacuate the villagers while he tries to kill as many monsters as he can. It’s tough work, as there are hundreds of them and he can’t seem to get their numbers down. Luckily the bulk of them mill around beneath a watchtower that Naofumi sets ablaze and brings down on top of them.
When the royal knights arrive and firebomb the place to mop up, they don’t bother to warn Naofumi, who gets Naphtalia under his shield just in time. When she hears the knights talking shit about her master, she threatens to take their heads off, and Naofumi has to order her to stand down.
Still, despite the knights’ utter disgust of Naofumi, he protects them all the same, and in turn, some of them stay behind to help him and Naphtalia even after their commander orders them to meet up with the other heroes.
With the knights’ help, Naofumi and Naphtalia are able to fend off the remaining monsters, while the other three heroes defeat the “boss”—a chimaera, from the look of it—with their much flashier-looking attacks. All of a sudden, the skies clear and the threat has passed. And Naofumi has passed his first Wave test.
A massacre of innocents such as that which claimed Naphtalia’s parents thus averted, the raccoon girl is overwhelmed by the relief and starts to cry, but Naofumi’s heart isn’t made of stone, especially where she’s concerned, so he puts his hand on her head to comfort her.
Naphtalia may have been a slave purchased to be used a a tool, but even Naofumi has to admit she’s much more than that. By not treating her like a slave but like any other person, he’s helped bring about her transformation into a formidable warrior with the heart of a true knight.
Naofumi has also gained the gratitude of the entire village, none of whom still harbor any animosity towards their hero. There are still a lot more people to convince that he’s actually not a rapist swine, but it doesn’t really matter. He’s not here to make friends or clear his name. He’s here to save this world from the Waves, then go back home.