Merlin and Morgan were the same; they didn't eat anything, just drank some water.
Before, they were spiritual bodies and didn't need to eat or drink.
But after getting bodies, they had to eat, drink, and excrete like humans.
After eating and drinking their fill, the four headed towards the depths of the floor.
The rock cave on the seventeenth floor was relatively tall, and the color of the rock walls had changed from black to grayish-white.
When they arrived at the 'Wall of Lamentation', the entire wall began to shake, and then started to crack.
Huge rocks fell, hitting the ground.
Lin Che and the others could only dodge.
When the rocks stopped falling, they saw a giant over seven meters tall walking out from the wall.
This guy was the Underground City's first Floor Boss, Goliath!
The Guild identified it as a Lv4 monster!
"It's so big!" Merlin exclaimed.
"Hmph, it just looks big!" Morgan still said with disdain.
"This guy's strength isn't low. Who's going first?" Artoria asked.
"I'll go first. You guys cover me!" Lin Che said, then rushed out first.
Goliath was a Floor Boss. If he could solo it, this massive achievement should significantly increase his ability values!
Goliath saw Lin Che attacking him and let out a beast-like roar.
Then it threw a punch at Lin Che!
The size of this fist, to Lin Che, was undoubtedly like a large truck rapidly crashing towards him!
Seeing this, Lin Che didn't dodge at all.
With a casual wave, he projected a giant sword and slashed at that punch!
Bang!!!
With a deafening roar, the sword Lin Che projected was shattered, but Goliath's fist was also split open.
However, as a Floor Boss, "Infinite Regeneration" is one of its basic abilities!
Visible to the naked eye, the fist split in half began to regenerate.
While regenerating, Goliath swung its other fist, smashing towards Lin Che again.
This time, Lin Che didn't choose to take the hit head-on, but instead leaped into the air, avoiding the attack.
"My life is made of swords!"
Leaping into the air, he began High-Speed Chanting.
Along with the chanting, a black bow appeared in his hand, along with three arrows.
Drawing the bow and nocking the arrows, he shot out three arrows, which transformed into a rain of countless arrows, wildly sweeping over Goliath's body.
The power of the arrows was immense, and they all shot into Goliath's body.
But Goliath's body was too large; these arrows were like toothpicks to it, only penetrating the surface and not damaging the interior.
Under the healing of "Infinite Regeneration", it recovered almost instantly.
Lin Che landed from the air and couldn't help but click his tongue when he saw this scene.
However, his attack didn't stop, because he also knew that those arrows wouldn't cause much damage to Goliath.
He chanted again, using the Alchemy Magic from the Type-Moon World.
This was the Magic of the Ainzbern Family, also known as the famous Alchemy.
Lin Che had also learned it from Irisviel.
After he used Alchemy Magic, the arrows on the ground suddenly moved.
The metal arrows turned into lumps of liquid metal, then gathered together and were forged into thick chains.
These chains quickly wrapped around Goliath, restraining its movements.
Goliath struggled frantically, and the chains began to give way, showing signs of breaking.
Lin Che continued chanting. This time it was Word Magic from the Fairy Tail world.
Using his finger as a pen, he quickly wrote four words in The Void.
"Indestructible!"
The words turned into light and merged into the chains.
The next moment, the chains became incredibly sturdy, and no matter how Goliath struggled, it was useless.
Lin Che's mouth curved upwards, revealing a smile.
"It's time to end the battle!"
A mass of silver liquid appeared in his hand, turning into an arrow.
This was Moonlight Liquid!
Lin Che shot out the arrow formed from Moonlight Liquid, directly into Goliath's body.
After entering Goliath's body, the Moonlight Liquid flowed throughout its body along the blood vessels, destroying all its vitality and shredding its internal organs.
Finally, it turned into a membrane, covering the magic stone and preventing the magic stone from providing Demon Power to Goliath.
The core of Underground City monsters is the magic stone. Losing the magic stone is equivalent to losing their heart.
Without the supply of Demon Power, the ability of "Infinite Regeneration" also became ineffective.
Lin Che waved his hand, and the Moonlight Liquid, wrapped around the magic stone, drilled out of Goliath's body surface.
Goliath was completely dead!
"That was truly spectacular!" Merlin applauded from the side.
Lin Che's fighting style left her in awe. Although his overall strength was not as high as Goliath's, he easily killed Goliath by relying on the diversity of his own abilities and their coordination.
This kind of cross-level battle, even ancient heroes might not be able to achieve.
Morgan didn't speak, but her eyes were full of praise and approval.
Artoria also sighed with emotion, "The Leader's growth speed is too fast!"
Lin Che smiled slightly, withdrew the Moonlight Liquid, and then put the magic stone, which was larger than a person, into the """Unlimited Blade Works""" space.
"Let's go, to the eighteenth floor. I'll take you to see a different kind of scenery!" Lin Che said with a smile to Merlin and the other two.
The three nodded, their eyes filled with anticipation.
After passing through the narrow passage, they finally arrived at the eighteenth floor.
After a burst of light, everyone saw a lush green grassland.
Besides the grassland, there were also countless dense Forests.
This scene, like a primeval Forest, and the fresh air, made Merlin, Morgan, and Artoria all widen their eyes, somewhat disbelieving.
"Is this what an Underground Labyrinth should look like?" Merlin said, somewhat disbelievingly.
"Where is the sunlight here coming from?" Morgan said, then looked up.
Then she saw an incredibly huge crystal, and the sunlight was radiating from within the crystal.
A gentle breeze blew, and the scent of fragrant grass mixed with earth was refreshing!
"It's truly a masterpiece of nature, this place is too beautiful!" Artoria smiled; she had already fallen in love with this place!
Lin Che also recovered from the beautiful scenery. He introduced to the three girls, "This floor is called the 'Safe Floor'. Monsters do not actively attack adventurers. Adventurers use this place as a transfer station for conquering the deeper levels. A town called 'Rivira' has been established here. Adventurers can rest and trade in the town, but the prices are much higher than on the surface, and items related to adventurers are several times more expensive than on the surface. However, since it's difficult to stably secure supplies in the Underground City, they can be sold even at sky-high prices!"
"That's great, I even want to live in seclusion here for a while!" Merlin squatted down, stroking the green grass on the ground, and said.
Here, she could feel the aura of nature.
This aura was like Avalon, making people feel comfortable and allowing them to relax completely.
"Why don't the monsters here attack humans?" Morgan suddenly asked.
"I don't know that either, but in special circumstances, monsters will still attack humans. Rivira has been attacked by monsters many times, so it has been rebuilt many times. It is currently the 334th generation!" Lin Che said, then thought of the last episode of the first season of the anime.
Hestia, in order to save the male protagonist Bell, unsealed a trace of Godly Power in the Underground City, radiating divine might.
As a result, the Underground City sensed it and directly sent the Floor Boss Goliath from the seventeenth floor to the eighteenth floor. It was also strengthened into a black individual, with strength comparable to Level 5!
"So, this floor isn't absolutely safe either!" Merlin said, somewhat disappointed.
"Yeah, there's no such thing as absolute safety in the Underground City." Lin Che nodded.
"Let's go and see the town," Artoria suggested.
"Alright, let's go see the town." Lin Che said, then walked towards a large tree in the distance.
The town of Rivira was right under that giant tree!
There were many adventurers in the town, each with considerable strength.
Because the minimum level of adventurers who could reach here was Lv2.
Of course, there were also a few low-level adventurers who came down with the strong members of their Familia.
The town wasn't very big, and it was quite dilapidated, with patches visible on some houses.
On the only road, there were merchants selling supplies on both sides.
"It's quite lively. Should we stay here for a night?" Merlin suggested.
"Let's not. If we don't go back, Hestia and the others will worry. If you want to stay, wait until next time," Lin Che said, shaking his head.
"Alright!" Merlin nodded with a smile.
After wandering around for a while, the four of them left Rivira Town and returned to Orario the way they came.
...
Around nine in the evening, Lin Che and the others finally returned to the surface.
At this time, Hestia and the others had probably already eaten.
So they decided to go out to eat.
However, before dinner, they still needed to sell today's harvest.
Arriving at the Guild's exchange office, Lin Che saw the same staff member from yesterday.
The person was slightly stunned when he saw Lin Che and the others, and subconsciously wiped his forehead.
At this moment, he had already started breaking out in a cold sweat.
Lin Che smiled kindly and took out all the Magic Stones and monster materials from the "Unlimited Blade Works" space, including the Goliath Magic Stone that was larger than a person.
With a rustling sound, the exchange office was filled with Magic Stones and materials.
At this moment, not only were the Guild staff dumbfounded, but even the other adventurers who came to exchange Magic Stones were stunned.
"This is too much!"
"There's even a Floor Boss's Magic Stone!"
"Which Familia is this?"
"To be able to defeat a Floor Boss, it should only be the Loki Familia, Freya Familia, and Ganesha Familia, right?"