When I got my rank in the guild I immediately looked for a dungeon around. I saw a dungeon and it was in a house next to a big building so I entered.

Great Sage: [You have entered the dungeon.]

When I entered the dungeon I immediately saw a wolf.

Great Sage: [White Fang Has Appeared. White Fang: Level 10.]

Claudius: Fire Magic: Fire Tornado

SWISH SWISH SWISH~

Great Sage: [The opponent raged. His Physical Ability increased.]

Claudius: Stealth

Great Sage: [Stealth Has Been Used. Every 5 Seconds your mana will be reduced by 20.]

I slowly approached him and killed him with just one hit.

Great Sage: [White Fang has been defeated. EXP: 67.]

I just killed White Fang until I got to the second door. When I opened the door I felt a very strong magic around until I saw someone in the middle.

???: Hey Claudius, we haven't seen each other for a long time.

Claudius: Who are you?

???: Even myself I don’t know who I am.

I thought about who he was but I didn't remember him until I remembered the old man in the Palace.

Claudius: Are you the old man in the palace that I helped?

???: Oh amazing that you still remember me.

Claudius: Why are you here?

???: Doing my job. You what are you doing here?

Claudius: Levelling up in this dungeon.

???: Ah so that’s how my system said you were my enemy.

Claudius: I don't think we still need to fight, we can get out of this dungeon.

???: You have to kill me so you can get to the boss and get out. No one can get out of here until the boss get killed.

Claudius: What are we going to do?

???: We will fight. when you kill me kill the boss too and get out of here. But if you can just kill me.

The old man was the first to rush. The old man was too fast for my eyes to follow him, so I was the first to lose hp.

Claudius: You are strong. Enhance Physical Ability. Fire Magic: Fire Tornado.

I used my Physical Ability so that I could move faster and rush at him and kill him in case he was too strong for me to knock him down with just one hit but I reduced his life a lot because I used the curse sword and fire magic.

Great Sage: [Your Sword is broken. Your sword turned into two daggers.]

Claudius: Ah swordsman to assassin huh

???: You say?

While distracting me with the dagger rush he punched me in the face so I reduced my hp.

Claudius: I'm going to use half of my Fire Magic just to beat you. Fire Magic: Fire Slash.

I shouted and stabbed him in the neck.

???: Wind Magic: Wind Shield.

He also shouted perp because he used wind, he just strengthened my fire magic and I killed him.

???: *BLUUGHHHH-* You can't win if i get serious, so Claudius it's look's like we're here to say goodbye to each other.

Claudius: Do you want something old man before you say goodbye

???: Candy. Just Candy. Thank you Claudius. Be safe goodbye.

He said goodbye with a smile on his face. That's where our fight ended.

Great Sage: [Boss: Thunder Fang Level:17. Magic: Lightning.]

When I was about to kill him, he suddenly bowed to me.

Great Sage: [Thunder Fang offered himself to be your slave. Do you want to accept?]

Claudius: Thunder Fang is strong so why not? yes

Great Sage: [Thunder Fang has taken care of you.]

When Thunder Fang became my slave, something came out under my Name.

Great Sage: [What will you name your pet?]

Claudius: Kyosuke

Great Sage: [Are you sure?]

Claudius: Yes

Great Sage: [Kyosuke is the new name of Thunder Fang.]

I left the dungeon and leveled up.

Great Sagw: [Name:Claudius. Level 26. EXP:3102/3610. HP:602/2000. MP:1492/3000. Passive: Cold Resistance Level Max.

Elemental Magic: Fire Magic Level 9.

Skill: ??? Level ???. Stealth Level Max. Inventory: Cursed Sword. Dungeon Key (Class A). Mana Potion x5. HP Potion x8. Gold 1922.]