I Became a Level -99 Vicious Lord

The inside of the dungeon was damp and dark.

If it weren’t for the dim light emitted by the magic stones on both walls, it would have been impossible to even see an inch in front.

[What kind of place is this?] Kairos asked.

“Um…a snake’s nest?”

[Huh?]

“Because of the snakes slithering around, it’s like a snake nest…”

Suddenly…

– Swish!

Something long shot up from the dark floor towards Otto’s face.

– Crash!

Without even thinking, he instinctively swung his sword.

– Thud!

The dead snake’s body wriggled on the ground.

If it had been before, it would have been an unimaginable reflex speed.

The snake, named “Lightning Poisonous Snake,” continued to wriggle and made threatening sounds towards Otto, even though it had been cut in half.

Not only that.

– Sizzle!

The “Lightning Poisonous Snake” spewed venom towards Otto, even when it was cut in half.

[What kind of snake is so vicious like a poisonous snake?]

“Because It’s a poisonous snake.”

[Oh, I see.]

“Don’t talk. I need to focus now.”

Otto said that and then firmly struck the still-moving head of the “Lightning Poisonous Snake” with his sword, completely cutting off its breath.

[Notification: You have defeated the ‘Lightning Poison Snake’!]

[Notification: You have gained experience points!]

That was just the beginning.

– Hiss! – Hiss! – Hiss! – Hiss! – Hiss!

The ‘Lightning Poison Snakes’ sprang up from all over the place, trying to bite and tear at Otto.

These snakes, named ‘Lightning Poison Snakes’, could jump up to 2 meters from a seated position and attack an opponent up to 1 meter away with their sharp fangs, from which they could spew venom.

In addition, their speed of movement and attack was so fast that it was difficult to react to them unless one was at least as skilled as Camille.

Furthermore, their venom was so powerful that it could cause blindness if it got into the eyes, and death within 30 minutes if one was bitten.

As a single mistake could lead to death, Otto had to be on high alert.

‘If I get bitten, I’ll die.’

Otto concentrated and began to take care of the thousands of ‘Lightning Poison Snakes’ flying towards him one by one.

[Notification: You have gained experience points!]

[Notification: You have gained experience points!]

[Notification: You have gained experience points!]

(Middle part omitted)

[Notification: You have leveled up!]

[Notification: Level 71 achieved!]

[Notification: Level 72 achieved!]

[Notification: Level 73 achieved!]

As he defeated the ‘Lightning Poisonous Snakes’, his experience points increased rapidly and his level also rose quickly.

The experience points given by the five dungeons in ‘Sanctuary’ were 2 to 5 times higher than those of other dungeons of the same level.

In other words, gaining the power of the ‘Invincible Emperor’ was not the only benefit; it was also a great hunting ground for leveling up.

“Phew.”

After about 30 minutes of battle, Otto breathed heavily after defeated all the ‘Lightning Poisonous Snakes.’

[How many were there exactly?]

“I don’t know. Maybe several thousand?”

[Now I understand why you called this place the Snake’s Nest.]

All the monsters in this dungeon were of the snake type, from the small fry to the boss.

It wasn’t called “Snake Nest” for nothing.

[By the way, make sure you keep your promise to me when we get out of here. Got it?]

“The promise to have a drink?”

[Yeah.]

“Don’t worry. You saved my life, so I won’t break such a simple promise.”

[Heheh! I’m counting on it!]

Kairos was already looking forward to having a drink after hundreds of years of being asleep with his mace.

“Let’s clean up here first. Then we can have a drink.”

[Hehehe! That’s right! Let’s go! Rookie! Let’s kill them all!]

“Got it.”

Otto chuckled and started walking again.

***

Afterwards, Otto gradually cleared the dungeon, defeating snake-type monsters and leveling up.

[Notification: Reached level 74!]

[Notification: Reached level 75!]

[Notification: Reached level 76!]

[Notification: Reached level 77!]

Having achieved level 77 and continued on, Otto finally reached a thick iron door.

[Is the boss in there?]

“Yeah.”

[Hurry up and take care of it, kid.]

“Do you think it will be that easy?”

Otto said this and slowly opened the iron door.

– Creak!

As the firmly closed door opened, a figure appeared.

[Hmm?] Kairos recognized the figure at a glance and spoke.

[Could it be…Calypso???]

“Correct.”

[Why is that witch here? Didn’t she die a long time ago? By the hands of the Invincible Emperor?]

‘Calypso’ was a legendary witch who lived in the same era as the Invincible Emperor.

She was a half-human, half-monster creature who had merged with a snake through evil black magic, which she loved dearly as her symbol.

It was said that the reason why the Invincible Emperor, who had been unknown in the past, became famous was because of the incident where he killed Calypso.

“How would I know that? It may not real Calypso, anyway. There’s no way he brought the real Calypso here. She died a long time ago by the hands of the Invincible Emperor.”

[Well, that’s true.]

“Nevertheless, at my current level, she’s an incredibly strong opponent…”

At that moment…

“Who dares disturb my peace?”

With a voice that sounded like metal scraping against metal.

Calypso unsheathed her sword and began to move her body.

“Those who disturb my peace… shall not be forgiven.”

At the same time, a gray light emitted from Kalypso’s eyes in a fan shape.

“….!”

Otto quickly moved his body to avoid the gray light.

– Swish!

“Huh?!”

Otto was surprised to see the left arm of his armor turning into stone and falling off.

The gray light was a crowd control skill called “Eye of Petrification”, which could turn enemies within its range into stone.

It was a very frightening skill that could turn enemies into stone with just one hit.

“Stop running you rat!”

Calypso screamed with anger as Otto avoided the “Eye of Petrification” and began to move in earnest.

Calypso’s movement speed was incredibly fast.

Thanks to her lower body, which was composed of a snake’s tail, she was able to move incredibly quickly.

“I won’t kill you easily!”

Then, Calypso’s hair, which was also composed of snakes, extended like tentacles and attacked Otto.

Otto’s sword cut through the snake’s hair, but it wasn’t a great success.

-Squeak! -Squeak! -Squeak! -Squeak!

New heads quickly grew back, with their fangs bared towards Otto, and they were constantly regenerating.

Calypso’s snake hair was constantly regenerating, so cutting it off was not enough to defeat her.

‘Avoid Making Eye Contact and rely on your senses as much as possible.’

Otto continued the battle slightly, lowering his head low to avoid eye contact.

Avoiding eye contact was the strategy for defeating the boss of this dungeon, Calypso.

As all five of her magic spells were manifested through her eyes.