(no ones POV)

The situation changed for the better. But our favorite adventurers were still in danger. One of the lieutenants of the devil's king army was in front of them and he wasn't happy. The adventurers who were near the city were either very scared or didn't know if they could help fight against this opponent. In short, you four would have to fight alone against this beast. 

Darkness: I will show you what a crusader is capable of doing!

Darkness charged the Demon Lieutenant with her sword in hand.

Kazuma: Darnkess, wait!

Darkness ignored Kazuma and continued her charge against Fang. In response to this, Fang crossed his arms to defend himself with a devilish smile on his face.

Fang: Bring it on! Natural booster: Iron skill!

Fang's body shone with an orange light for a few seconds and quickly that light vanished. But it seems that that ability had no particular effect on him. Darkness swung her sword towards Fang five times... But all her attacks missed.

Fang: Huh?

Darkness continued to attack Fang with her sword, but she continued to miss each of her attacks. This was so uncomfortable, that even Fang got a little closer to Darkness so she could hit him. But even so, Darkness continued to miss her attacks.

Darkness: You are a quick one!

Fang: Y-You are messing with me... right?

Kazuma: How aren't you able to hit a stationary target?!

Fang: For the love of- Look, I will stay completely still and with my eyes closed. But hit me with your sword, I want to show you my skills.

(y/n)(mind): Is this guy stupid or what?

Aqua: Wach out Darkness!

Darkness: What?

Aqua: That skill that Fang used is a skill that belongs to the priests. It allows the user to strengthen their skin and make it as hard as steel. Fang is trying to trick you into hitting him.

Darkness: What?!

Fang: Hahahaha! That's right! I have the skills of a priest. It's the only advantage of being half human. Now, what are you waiting for? I will allow you to hit me once. But after that, I will not have more clemency with you.

Fang closed his eyes and stood in front of Darkness with his guard completely open, arrogantly waiting for the humans for their first move.

Megumin: What do we do know? If we attack him, that ability of his will allow him to easily resist our attacks.

Kazuma: Wait... (y/n), you remember that I learned the skill "create water"?

(y/n): Yeah? But how is that going to- Ooooohhhhh! You're smarter than you look, Kazuma.

Fang kept waiting with his eyes closed and began to get impatient.

Fang: Well?! Are you going to attack or-

Kazuma: Create water!

A blast of water completely wet Fang. Like a dog, he quickly shook his body to dry most of his fur.

Fang: Water? Is that the best you can do?

(y/n): You'll see. Lighting bolt!

The water that Kazuma had fired left a trail that stretched across the ground to where Fang was. You put your hand that was covered by electricity on the water trail. Thanks to the fact that the water is a good conductor of electricity, the lightning of your attack followed the water trail to where Fang was, electrocuting him severely.

Fang: KYAAAAAAA!!!

Fang's body shook violently from the electric discharge. When the electricity stopped, Fang fell on his knees while looking at the ground.

Darkness: *Blushing* Being hit by an electric discharge like that...

(y/n): Darkness... Just no...

Aqua: Darkness watch out!

Darkness: Wha-

Fang quickly stood up and hit Darkness with such force that he sent her flying towards the entrance of the city, where she landed on a group of adventurers smiling and imagining inappropriate things.

Fang: You humans... you made me look like a fool!

Megumin: Darkness!

Fang appeared quickly in front of Aqua and lifted her off the ground holding her by the neck. His grip was strong and Aqua felt how she was running out of oxygen. Kazuma tried to cut Fang with his dagger. But his weapon didn't have the power to pierce Fang's steel skin.

Fang: I will eliminate the support of your team first!

Kazuma: Aqua!

Fang was about to finish off Aqua with his claw, until someone kicked him in the face. Just before Fang could kill Aqua, you kicked him in the face, sending him flying to rocks next to Pitou. Fang recovered quickly. But you could see some blood falling from his mouth. This means that your attack wounded him, even with his steel skin.

Pitou: Having fun?

Fang: Shut up! 

Fang moved the debris that stood in his way as he walked towards you with murderous intentions.

(y/n): Guys, wait here. I'll take care of this guy.

Aqua: *Cough* W-Wait. *Cough* (y-y/n)

Fang: Natural boosters: Iron skill! Increase strength! Increase speed!

(Mecha: There are some people who will realize about my inspiration about this combat. I'm even going to make it easy for you later)

Fang and you ran towards each other. Jumping in the air, both throwed an attack against the other. Fang threw a punch while you threw a kick reinforced with Haki. Both attacks collided with each other, but the force of Fang's attack surpassed yours and sent you flying, causing you to hit the ground and create a curtain of dust.

Fang: Hahaha! A human can't beat me! Although, I'm surprised your leg hasn't broken with that!

(y/n): You talk to much!

You came out at an incredible speed from the dust curtain, flying towards Fang. Once close enough, you started kicking Fang continuously with your two legs without stopping. Your attacks were clearly hurting him and your strength was pushing him back.

(Mecha: Yeah... that)

Your last kick sent Fang away, rolling on the floor. He quickly recovered and tried to attack you with his claws. But you tilted your body back, avoiding his attack and kicked him with both feet in his face. He held you by your ankles and started spinning in circles with you. Then Fang threw you into the air and when you were about to fall, he hit you with his fist that was as hard as steel. You fell on the ground, not so far from him.

Fang: Your kicks are hard... What kind of skill do you have that allows you to strengthen the skin of your body as well as steel?

(y/n): It's called haki.

Fang: Haki? Never hear anything about that skill. Either way, that skill of yours will not help you against me.

(y/n): Like I say before, you talk to much.

Running to Fang, you covered your arm with armament haki and activated your skill. Your fist generated a small tornado around you and you were about to hit Fang. But he jumped over you and started flying.

(y/n): What?!

Megumin: How?!

Fang: I have a skill that allows me to fly!

(y/n): That's cheating!

Fang started to shoot you air slashes. His attacks collided with you and if it weren't for your haki, his attacks would have ended with you. Fang's attacks destroyed your martial artist's uniform, leaving you nothing but your pants and shoes. Your long hair was untied and moved along with the wind while the girls could see your abs. The sad side, is that your torso had a couple of wounds.

Aqua(mind): That's hot!

Megumin(mind): Oh no he is hot!

Kazuma(mind): What a cliche.

Fang: Hahaha! You can't beat me!

Your leg began to cover itself in flames.

(y/n): We'll see about that...

At an impressive speed, you appeared in front of Fang and kicked him in the stomach with your leg covered in flames.

(y/n): Demonic leg!

Your attack managed to overcome Fang's defense, burning him severely.

Fang: I-IT BUUUUUURRRRRNNNSSS!!!

Fang went flying in circles towards the same rock where Pitou was. She jumped out of there, avoiding the impact that Fang caused when he hit the rock. Despite his injuries, Fang managed to stand up while holding the burn of his chest.

Pitou: Mmmmm! Something smells like a barbecue. Nyahahaha!

Fang: H-HOW DARE YOU?! I'M FANG, ONE OF THE DEVIL'S KING BEST SOLDIERS! I REFUSE TO THINK THAT A HUMAN LIKE YOU CAN DEFEAT ME!

(y/n): I'm not going to defeat you, she will.

Fang: SHE?! WHO IS SHE?!

Fang saw a light in the sky and he slowly looked up. Above him, there were several magic circles in the sky. In the distance, Fang saw Megumin who was casting her spell.

Fang: ...No fair...

Megumin: EXPLOSION!

A big bang hit Fang directly. All the people near the area did what they could to avoid being dragged by the force of the explosion, with the exception of Pitou. She was simply standing, unaffected by the explosion. Once the effects of the explosion disappeared, Fang was still standing in the middle of a gigantic crater.

Aqua: He is still alive?!

Fang: Hahaha... HAHAHAHAHA! I'M FANG! I CAN'T BE DEFEATED BY-

*Stab*

Fang fell straight dead on the ground with a stab wound on his back. Behind him was Kazuma with his dagger covered in some blood.

Kazuma: Tadaaaaa!

(y/n): How did you...?

Kazuma: I snuck out from behind while there was still smoke.

*Clap**Clap**Clap*

They all looked at the direction of the applause sound and saw Pitou. She was walking towards you with a smile on her face.

Pitou: Congratulations! You defeated that stupid dog. To be honest, I really hate him.

(y/n): Thanks. Now, I just have to get rid of you.

Pitou: Nyahaha! You want to fight me now? 

(y/n): You can always leave. I mean, weren't you on your vacation?

Pitou: You are right about that, (y/n). Okay, I'll leave. But before I go- 

Pitou quickly appeared in front of you and gave you a quick kiss on the cheek. She reappeared in her original position while you held her cheek that she kissed.

Pitou: See you later~ Nya~

Pitou began to walk away while moving her hips in a seductive way. You could not stop yourself from staring a little. Or at least it was like that, until Aqua hit you on your head with her staff.

Aqua: Stop looking at her!

(y/n): Sorry!

(your POV)

At least we get rid of two problems. But... Dullahan will come back here sooner or later. I need to become stronger for when that happens.