The next morning, the Filin Dungeon Association.
　In the president's office, Eric, Mao, and I were face to face with each other.

We found out what time the Dungeon Master will show up. It's tomorrow at noon.
Where is the hierarchy?

　Eric asks Mao.

'It's the Lantern's twentieth floor, as expected. It's the floor with the dark creeps.'
Also on the water beer floor. A very cool location.
Yeah, that's a zero-failure proposition.

　Mao and Eric, their expressions were bright.
　You're too easy to be planning to use the Dungeon Master to destroy the ecosystem (breed) by using the Dungeon Master, aren't you?　I thought for a second.

'Water beer?　And what do you mean by zero failures?
Didn't you know?
You mean like watery beer?
Well. It has a beer flavor, but it's a sad substitute for not getting drunk, no matter how much you drink.
Yeah.

　You mean non-alcoholic beer?

'Water beer doesn't sell and no one drinks it for free. I don't know what that turns into, but it can't be anything less than ...... water beer.
Well, you already suck at it.
As a matter of fact, I made this plan when I found out I was going to be on the 20th floor.

　Eric says.
　I see, it's not so much that there are no failures as it is that we should take the opportunity to change a meaningless hierarchy.

'We don't know how long the change will take. Therefore, we've decided that tomorrow, after the Dungeon Master appears, we'll forbid you to enter or leave the Lantern at all.
We're going to let Cerium do the work for us.
We will stay close to the entrance, and after confirmation of the dungeon master's defeat, we will go to the 20th floor.
You're not coming with us?

　When I asked back, Eric and Mao looked apologetic.

'We're not cut out for a fight, so...'
They're both level one and slowing me down.
Really?

　I thought I was going to use the experience crystal in the example.

　The ring dropped from the Cyclo Dungeon Master.
　It's an item that, while equipped, the experience of the monsters you kill becomes a crystal, and the more you use it, the more experience you get at once.

　In this world where adventurers are mostly running steady laps, and 99% of them reach their highest level before they know it, it's a useful item, but it's not very useful.

　I wondered if I should give the experience crystals I've accumulated to two people.

''It's a one-shot deal.''
I can't wait to see what kind of drink it is.

　Two people who aren't adventurers and don't have to fight don't seem to be inconvenienced by the fact that they're level 1, so I decided not to offer it.

　But yeah, I see, it's a one shot deal.
　If only I could know when to beat them like Rebecca did, and when to get the best drop.
　Nah, that's a one-time thing.

　The best time in my opinion isn't always the best time for the best drink.
　I don't know as much about alcohol as Mao does.

　Well, it's a drop S, so it won't be a bad result, and it doesn't matter if you get a shot at the occasional dungeon master .......

　...... hmm?
　The occasional dungeon master?

　I remembered that ring, the cyclo dungeon master who tried to use it.

　　　　　Star.

　Furthermore, the next day, the Lantern Dungeon, 20th floor underground.

　There are no more adventurers in this ninja mansion-like dungeon.
　It's crawling with monsters that haven't been defeated because of that.

　The monster on the 20th floor of Lantern 20 is a dark ninja.
　They are literally ninjas dressed in black ninja gear like darkness.

　If you fight them properly, they can be quite troublesome, but I'm just going to take care of them.

　In the meantime, the expected time has come.
　The air changes. It's the same air I've experienced many times when the dungeon master is in the air.

　When the Dungeon Master is out, the monsters disappear and only the Dungeon Master ...... is there.
　The dark ninja hadn't disappeared.

　They all stood on sticks like mannequins, but they didn't disappear.
　What does that mean?　The real target will appear without any time to wonder, "What is this?

　A humanoid monster in special and luxurious armor that is clearly one-of-a-kind and distinct from foot soldiers and samurai generals.

　Daimyo.
　He is the Lantern's dungeon master, Daimyo.

　He's the master of Lantern's dungeon, the Daimyo.

　The Daimyo is coming towards us very speedily.
　He's drawing his sword from his waistband as he walks towards us.

　I've fired a growth shot, first of all, a small check, and then I'll punch him in the shoulder.
　The daimyo slumped and stopped in his tracks.

　The shoulder that was shot out, if you look closely, it has begun to regenerate.
　The dark ninja right beside the Daimyo decomposes, and the Daimyo absorbs it, repairing the wound.

　When he had fully recovered, the Daimyo started walking again.

''Hmm.''

　Once again, this time, he eliminated one of the legs with a freezing bullet, a flaming bullet, and an annihilation bullet that fused together.
　A lot more damage than before, so much damage that an entire leg was lost.

　The Daimyo stopped again, and absorbed the nearby dark ninja to heal his wounds.

　I see, I wondered why the monster was present, but it was a source of recovery for the dungeon master.

　He blows off one leg and one hand of the lords who started walking again.
　There were two injuries, but all it took to repair them was a single dark ninja.

　Apparently, one piece is enough for one recovery.

　The fully recovered daimyo came towards him and swung his sword.

　He assessed the sword's length = range, and flew backwards to dodge it--

-Oh!

　At that moment, a chill went down my spine.
　My instincts screamed with all my might, "Oh no!
　I didn't fly backwards, I flew directly to the side.

　The sword of the lord swung down, the ground split open for more than ten meters.
　It's a close call, if I had gone back just by the length of the sword, I would have been cut down.

　The daimyo swung his sword further, this time with a horizontal slash.
　This too is bad - so I crouched down to dodge.

　After the sword swung out, a single horizontal slit of more than ten meters was created in the mansion - the wall of the dungeon.

　Is it an invisible slash, or is the sword itself an invisible sword blade?
　I don't know which one it is, but it's bad if you're passive.

　Stalling, this could be a lot harder.

　I kept my distance anyway.
　I shot a growth bullet to stop them, but the lords learned, or maybe they learned to play it with their swords and move forward.

　On the way, the dark ninja - kicking his own subordinates to the ground and still advancing.
　The moment I kicked them away, my speed slowed down a bit, but it made little difference.

　In this situation, it's better to aggressively and aggressively stop them in their tracks.

Mwah!

　Suddenly, I remembered something.
　Seeing the lords advancing, kicking away the completely motionless dark ninja, I had an idea.

　A flame round and an azure round.
　I would launch the two and fuse them together to create an invisible flame.
　The daimyo continues to advance, and the moment he touches it, half of his body is instantly burned away.

　The Daimyo stopped and began to regenerate.
　He takes in the ninja of darkness and regenerates the burned out body - but.

　It doesn't move while it's regenerating, which means it's regenerating in a space with invisible flames.
　The moment it regenerated, the Daimyo was burned out of the exact same spot.

　It was regenerated as it was - and burned out.

　From the moment it was regenerated, it was burned out, and the Daimyo stayed where it was and repeated the endless regeneration.

　I lowered my gun.
　No longer did I have to do anything, the stranding was almost complete.

　All that's left to do is wait in this state.

　After a few hundred repetitions of regeneration and annihilation, a change occurred in the dungeon.
　The dark ninja that was the source of recovery around me disappeared for a moment and became covered in flames.
　His attire became more revealing than a ninja, and even his body became more erotic.

　The flaming Kunoichi, a monster that could definitely be named that based on the trend up to now.

'I see, so this is how the monsters change.

　Even then, the lords continued to regenerate and disappear.

　Just as I was wondering what to do from here, Eric and Mao showed up.

'Oh, it's still different,'
You are very good, sir.

　When they came to me, they said with an impressed look on their faces.
　I ask them both.

'Are you sure this is the right thing to do?'
'Yeah, all we have to do is defeat the dungeon master, and then we can drop from the new monsters.
Okay.

　I raised my gun and fired a series of annihilation bullets.
　I shot annihilation bullets that repeatedly regenerated and disappeared, covering every part of the Daimyo's body that was stopped in its tracks.

　The Daimyo disappeared and dropped the ring.
　I pick it up.

''I'm going to taste the new drink as soon as possible.
Would you mind?

　Eric and Mao stared at me, and I nodded and shot out a flaming Kunoichi with a growth bullet as it started to move.

　It wasn't very strong and I was able to take it down in one shot.

　The bottle I had prepared was filled with liquor and edamame was dropped at the same time.

'What does this ...... mean?'
'Yeah, that's my special ability, when I have it on I drop both drinks and nibbles at the same time.
I see.

　Eric is convinced.
　It's normal for nibbles to be dropped, so that convinced me.

　He uncorks the bottle and they check the new drink.

'This is ...... banana liquor, isn't it?'
But there's a lot of ...... that's pretty mediocre.
Isn't it good?
'Yes. It won't be too expensive in itself, but I thought it was better than water beer.
So let's do it again.
"What?

　They both raise their voices in surprise.

'What do you mean, once more?'
See you there.

　With that, he made them wait.

　First, to be safe, I used the repetition to clear out the flaming Kunoichi around me.
　Then I put the ring away in the empty cave, away from the others, and leave.

　I stuck with the two of them as they looked like they had been pinched by a fox.
　After a while, the air in the dungeon changed again, and Dungeon Master Daimyo hatched.

　He quickly fired a fusion bullet of flame and azure bullets to stop them.
　After stopping his feet, which repeatedly regenerated and disappeared, he says to them.

''This is the second time.''
'I see, we can try again using the Dungeon Master's drop.
Oh, my God, that's amazing.

　Mao is overjoyed.

　He waits for a while in that state, and then the flaming Kunoichi becomes the ice Kunoichi.

　Confirming this, Dungeon Master Daimyo also defeats it with Repetition.
　The ring dropped again, and when I picked it up, I saw Eric and Mao startled.

'Take out the Dungeon Master, beat it, change(hatch) it--repeat it until you get a good one.
This is ...... amazing.
It's amazing!　It's far more amazing than I expected!

　They were amazed and impressed.
　Together with them, we repeatedly changed the ecosystem of this floor and continued to improve the breed.