Lanthanum Dungeon, 20th floor .

Mao・Mi, the chairman of Flint a.s.sociation was with me on this floor .

Looking around me, there was n.o.body else besides us .

[It’s a loan nano!] (Mao)

Mao said with an innocent looking smile, which suited her pet.i.te look .

[A loan?] (Ryouta)

[That’s right . Because you requested Mao, Mao asked all of the adventurers to stay away from this floor, so you are loaning from Mao . ] (Mao)

[Are you sure you should do such a thing?] (Ryouta)

[It’s fine . There’s no place in this world that has a higher priority than asking you a favour . ] (Mao)

Mao said something with that innocent look on her face .

It’s amazing for her to say that to me .

At that time, inside the chairman’s office of Shikuro .

Cell and his men were doing paperwork .

[Hm?] (Cell)

[Is something the matter, Cell-sama?] 

[I just received a revelation . ] (Cell)

[revelation?]

[It is a revelation whereby we have to show to each other, showing our own beliefs to one another . ] (Cell)

[I apologize for not understanding, but please do your best . ]

[——–!] (Ryouta)

[What happened? Why the scary look?] (Mao)

[It’s nothing, I just have this sudden chill… . It’s just my imagination . ] (Ryouta)

It felt like something was going on in someplace which I did not know of, but I decided to brush it off .

[Anyways, what do you want to do with the sword?] (Mao)

Mao asked as she saw me holding onto the sword .

[I’ve done my research, but the number one most used weapon for adventurers are swords . ] (Ryouta)

[Yes nano, it’s an easy to use weapon, that’s guaranteed by Mao . ] (Mao)

[That’s why I have it now . ] (Ryouta)

[Mao doesn’t know what’s happening, but Mao will cheer for you . ] (Mao)

[Thanks . ] (Ryouta)

I grabbed hold of the sword .

It’s something that I’m not familiar with .

After coming to this world and defeating rogue monsters, I’ve only been using the bullets and revolvers and some magic, but never the weapons of this world .

But right now, it is necessary to use it .

The monster of the 20th floor, the flaming ninja .

A monster with flames all over its body, and wearing a ninja clothes .

Then, the flaming ninja who noticed me, stormed its way to me, and tried to slice me with the hidden sword on him .

I stopped it with my own sword, and both metals clashed with sparks flying around .

The ninja took a step back, and swung at me again .

Before it could attack again, I slashed at it, and it fell to the ground, dropping sake .

Today’s regime wasn’t to collect the Bodley・Ryouta, but to train for my sword fight .

After walking around for a little while, another flaming ninja appeared .

I didn’t immediately defeat it, but observed his every movement .

The flaming ninja was easy to understand .

There are two patterns of attack when rushing, depending on which leg moves first .

If it moves with its left leg first, it’ll pull out its sword, but if it moves with its right leg first, then it’ll throw a shuriken .

And when it turns around, seemingly doing nothing, it turns back and throws its shuriken .

Seeing through these patterns is one way of optimizing my way of using the sword .

Suppressing my ability, and lowering my speed to about a C rank .

Using that ability, I made an optimized movement to face against the flaming ninjas .

[Alright, with this I’ve reduced time by nearly 20% . ] (Ryouta)

[Congratz . ] (Mao)

Mao applauded with her hands .

[You watched the entire thing?] (Ryouta)

[Yes nano! It was very cool, especially the last one where you seemed to be dancing . ] (Mao)

[Dancing huh, that might be the case if I kept following a certain pattern . ] (Ryouta)

Recalling the various patterns and optimizations that I’ve done, it might look like dancing to an outsider .

After writing down the optimized pattern and path using a pen and paper I bought in advance, I handed it to Mao .

[What is this?] (Mao)

[This here is the safest and quickest way to fight against a flaming ninja using a sword . Freely distribute this information to the adventurers . ] (Ryouta)

[It’s a waste . There were some great moves even for Mao who isn’t an expert fighter, so it’s a shame to share it freely to others . ] (Mao)

[It’s alright for it to be free . ] (Ryouta)

After answering her, I further pushed the paper to her .

[… . ]

Mao stares at the paper intently .

[Did something unreasonable happened somewhere?] (Mao)

[Let’s see, I don’t think the other person did anything unreasonable] (Ryouta)

I recalled Matier’s face .

And his family’s boss .

Though I do not know who he or she was, but what I know for sure is that the way that family works is something I could not forgive .

Although Matier looked happy after quitting, but I can’t stand that what I created for him was stolen by his boss .

Because of that, I came to this floor with a sword which is used by most adventurers and came up with an optimized route and pattern which reduces time by up to 20% for all the adventurers to use for free .

Publishing it for free .

[My condolences to the person who’s gonna get it . ] (Mao)

[Yeah, haha . ] (Ryouta)

[But they deserve it . ] (Mao)

[Hm?] (Ryouta)

[Even though you said that n.o.body is doing something unreasonable, but the fact that they are going to get what they paid is funny . ] (Mao)

[That’s true . ] (Ryouta)

It would be nice if it’s that way .

Mao then finally took the note from my hand .

[Mao shall take responsibility by spreading this method to all of Flint’s adventurers!] (Mao)

[Thanks, I’ll entrust it to you . ] (Ryouta)

[Don’t mention it . It’s an honour that Mao can be a part of Ryouta’s system!] (Mao)

[I beg you to not use that name on me . ] (Ryouta)

It’s embarra.s.sing .

However, since she’s happy about it, I leave it as is for now .

After awhile, the system of Lanthanum’s 20th floor has spread .

And there were rumours that Matier’s family has lost their credit after being called out for selling shabby ways in the 20th dungeon .