The first dungeon.

The frogs were not nightmare creatures, so their bodies did not vanish. The soldiers then began to cut open the frogs' bellies to save the soldiers that had been swallowed. The frogs had not digested them quickly, so the soldiers were still alive but severely hurt from the acid in the frog's stomach. 

"Soldiers treat the injured; also, someone knows what that door is?"

"I do, captain; those doors are the dungeon's entrance; they appear when the monsters in a zone reach a certain number and the concentration of monsters creates one where most of them get pulled inside the dungeon."

Kay expressed gratitude toward the soldier, who simply nodded in response.

"Ayaka and Laurelena, come with me to explore the dungeon.Thunder Militia, you're also invited to join us. Soldiers, make sure to guard the convoy and the door while we're away. We'll return after we finish our exploration." 

The team formation for Kay consisted of two thunder militias at the front, acting as tanks, while Kay was in the center and Ay and Lau were at the back with Grandpa Turtle. 

After opening the large door, they found themselves in a cave that was partially submerged in water and completely dark. However, the natural glow of the thunder militia lit up the cave, allowing them to explore further inside. 

After walking for a short while, they spotted a group of 10 large frogs ranging from levels 6 to 8. When the frogs noticed the Kay team, they began to run towards them. The thunder militia quickly moved to the front and used their shields to defend against the frogs' tongue attacks. 

When the frogs tongues came into contact with the shield, the shield emitted electricity that struck back at the frogs, sending lightning toward the enemy who attacked. Kay rushed toward the nearest frog to strike it with the help of Lau's skill [Stone Blast], while Ay targeted the tongues attacking the thunder militia with her arrows to decrease the number of attacks. 

Kay skillfully avoided the frog's tongue and then quickly attacked the immobilized frog. With the assistance of Lau's spells, the first frog was swiftly defeated, and they moved on to the next one.

After a while, all the frogs were killed.

"It is more difficult to battle with half of your body submerged in water; let's take a break before moving forward." 

After taking a short break, they resumed their journey through the dungeon. The scenery remained unchanged as they progressed until they reached a larger area where a massive frog awaited them. 

Lvl 8 [---][Giant Frog Gatekeeper][Hp:1,800/1,800][ET:4,000/4,000]

"Ladies, get ready. This opponent is more powerful than the ones we have faced before, but there is only one of them, so it shouldn't be too difficult. Let's attack; thunder warriors charge!"

After receiving Kay's command, the Thunder Warriors swiftly advanced. Upon spotting them, the gigantic frog leaped and instantly squashed one of the warriors. The arrows from Ay were ineffective in moving the heavy frog, only causing minimal damage [ET: 3,980/4,000]. Meanwhile, Lau took advantage of the large target and fired without the need to aim [ET: 3,960/4,000]. 

The frog made a loud noise that stunned the girls and the thunder warrior. In that moment, the frog quickly ate the last thunder warrior before they could move again.

"Ay, save your skill till it ether is down; just keep attacking with your arrows and Lau spell; I will use my skill to do heavy damage to it."

Kay exerted all her energy to leap and then released five thunderbolts [Thunderbolt 7/12] that struck the large frog's body with no difficulty, pushing it back a little [ET: 960/4,000].

 "NOW! Ay, use your skill!"

Once Ayaka heard Kay's order, she used her skill [Fox Fire 6/11] 5 times, impacting the giant frog's body at the same time [ET: 0/4,000] [Hp:10/1,800]

"¡Croac, croac!"

The frog screamed in agony as its body was burned, causing it to die when its health reached zero. 

Kaylessa [Exp:6533/8000]

Ayaka [Exp:6533/8000]

Laurelena [Exp:3829/6000]

During the dungeon run, they only earned 280 experience points, which was not too bad considering the short amount of time it took to complete. After checking their experience points, they moved towards the door that was being guarded by the giant frog. 

There was a small cave underneath the water behind the door, with a chest sitting on a rock. Laurelena approached the chest and opened it, finding only a little blue ring inside. 

"Here, K-Kay, there was only this ring inside of it."

Once Kay received the ring, she inspected it.

[Frog Lord Ring]

Once equipped, all the range attacks will have water elemental damage.

"Here, Ay, equip it; since Lau basic attack already do earth elemental damage, your arrows will now do water elemental damage."

"You don't mind Lau?"

"No, that's okay. Kay is right; you should use it; theres no problem with me."

When Ayaka placed the ring on her finger, she felt a brief chill. She then took an arrow and shot it, causing the arrow to become wet and create a splashing sound upon impact. 

"It looks like my arrows are wet now. We'll have to wait and see how effective they are against a real enemy." 

The girls walked towards the dungeon exit and spent an hour getting there. They opened the door, jumped into the river, swam to the shore, and then collapsed from exhaustion. 

"Huf huf huf, I-I-I don't want to see a frog in a long time." 

"Hahaha, I cant agree more with you, Ay."

"I'm overwatered; now I will need a sunbath for the rest of the day."

After leaving the dungeon for some time, the door began to crumble. It appeared that once the treasure was taken, the dungeon could no longer maintain its existence and disappeared. 

Kay and Ay entered the wagon to relax, while Lau went on top of the wagon to sunbathe and dry off her skin.