I Reincarnated as a Villain of an RPG, But I Want to Survive

Becoming rampant

『<Ex Yelo>!!』

『<Yelo Valkyrie>』

『<Ex Aire>!!』

『<Airedra>』

『<Explosion>!!』

『<Plosion Prometheus>』

No matter how many highest rank magic Grey Ryuuga used, I countered with ultra-highest rank magic

The new magic, which are not being added to the game until 『Beast Fantasy 9』, are something beyond the understanding of Grey Ryuuga, a character from 『４』

While both our magic have the same nature, mine is superior in term of power so in a head-on collision, my magic wins

The not-offset part of the magic hit Grey Ryuuga directly

『Gaaaaaaa!?』

However, it’s surprising that far from causing fatal wounds, they couldn’t inflict any big damage

The reason is due to the hardness of the dragon scales covered his body

Beast mode is not just for show after all

『……Well, actually, I’m thinking you are really a big deal』

I honestly think so

『Being able to fire off highest rank magic in succession is an example. Magic, which is originally a product of intelligence, has bad affinity with beast aura created by beast god Beast』

That’s why while cladding the beast aura, magic-related efficiency always becomes worse

The power of practically used magic is reduced, the learning speed is also slow

『Especially, the intelligent in beast mode is extremely low, you shouldn’t be able to use any magic at all. Being able to use magic in that form is the proof that you still have a prominent intelligence even after being eroded by beast demon』

Looking at the entire 『Beast Fantasy』 series, Grey Ryuuga is one of the few who can balance beastification and magic-usage by brute force with his intelligence

He is the owner of such amazing talent

At the same time……。

『You are not being controlled by the raging instinct of the beast aura』

『Beast aura is always accompanied with spirit erosion……Frenzy, cruelty, mind becoming more beast-like』

Until a while ago, Forte, Gashi and even my sister Selen were suffering from that

Right after they received the beast pieces, if I didn’t treat them with Holy wisdom art then their mind would be dominated by rage and they would change into the evil big bosses

『You even control it and keep your own reasoning. Being able to use magic in that form is the biggest proof. If your mind already became beast-like then the idea of using magic wouldn’t appear』

『What do you want to say……? You are flattering me now?』

Oh right, my way of talking is a little roundabout

In other words, what I want to say now is……。

『You tormented Selen a while ago is not due to the rage from beast aura, I’m sure it’s from your own will』

Right

『Tormenting my cute sister, it is your sin. You can’t push the responsibility to the beast aura. I won’t forgive you. I will continue to hit you until you cry』

『……!?』

『is what I want to say』

Then, the fun starts now

It’s just small battle with magic until now. I haven’t showed the real power of Holy beast mode. He wouldn’t know for what reason I get the holy beast mode unless I beat him after all

『……Ku!　Kuhahahahaha!　Ahahahaha!!』

What’s with that sudden laughter?

『Fine, let’s admit it! Jirat, you are a strong warrior, far surpassing my imagination! Not only in power but also in your knowledge and heart! I already can’t consider you as low-ranking anymore!!』

That judgment is slow

『From now on, I am the challenger! I will challenge you with all my might! Look! This is the strongest power I struggled to achieve after gaining the 『dragon』 beast piece!!』

Grey Ryuuga became huge

『Transform even more, huh……!』

『This is beast mode 2nd form! The power of me who have unleashed the beast nature is incomparable to the previous form! This is my genuine final trump card!!』

Right

This guy has a 2-step transformation

This is extremely troublesome in the game, just when I thought 『He’s defeated!』, he came back with more power

The battle against boss with 2-step or 3-step transformation is always a long one

After one round of battle ended, all buffs are cancelled and player can’t heal

The point is, they are hateful enemies!

Grey Ryuuga, who had finished the 2nd transformation, had lost the human appearance and was approaching that of a monster

Although he barely retained the limb-having silhouette, he became thicker and larger, giving off the appearance of a giant

Both the membrane wings and the tail lengthened, his front face pushed out while his mouth stretched to his ears and contained countless sharp fangs

It was close to the appearance of his symbolic animal 『dragon』

『Normally, if someone releases this much beast nature, their sense will completely vanish and they can’t never return to the old self again』

Grey Ryuuga’s force of will can reverse even the irreversible

The empire’s strongest is not just for show after all……how many times did I say that?

『The hardness of the scales covering my body has increased! All kinds of attack from you can’t go through it anymore!』

『<Riama Hestia>』

『Hoooot!?』

I see

Even the super-highest rank flame magic <Riama Hestia> is only as effective as lightly grilling meat

That is the result of the 2nd transformation

『The power of 「dragon」 you had is effective. Even if we think about other beast modes, none of them are as hard as yours』

『I’m honored to receive your praise. Then, can you breakthrough these scales? Next is your turn, show me the power you are hiding!!』

Right

I haven’t exhibited the true power of holy beast mode. While in holy beast mode, I mostly used the power of “wisdom”

『If you have the power of 「dragon」……』

『n?』

『Then I also received a symbolic animal. The power of 「mouse」』

『Right. It is as pity as it sounds』

Ah, did he just make a fool the mouse?

Shall I make him regret that?

『Speaking of mouse, it’s a very small animal in this world. Mice are incompetent animal which can only slip into houses and secretly eat food. What is the meaning of having the power of such small things?』

『That is exactly why the prince can’t understand the sorrow of the commoners』

I spoke, full of sarcasm

『Aren’t they the most harmful animal? Mice stole human’s food and caused enormous damage. Perhaps mouse is the most harmful, troublesome animal to human』

『……!?』

『How can you govern the country without knowing that?』

Each of the Twelve Apostles has a symbolic animal

Among them, perhaps the mouse is the one with the most 『harmful』 point

『That power of mouse is given to me, so you guys should be more desperate 』

I hold my palm out

I gather a suitable amount of pale holy beast aura covering my body on my palm and knead it

『What are you doing……!?』

『I have made it』

I adjusted the shape and gave the holy beast aura a tangible form

The shape of a small mouse

『By manipulating the holy beast aura, I created a pseudo energy lifeform. Should I call it spirit beast?』

Now, go

The spirit mouse jumped from my palm

It ran quickly like a real mouse

The target is the terribly looking, gigantic Grey Ryuuga

『What are you trying to do!?』

Grey Ryuuga stepped on the spirit mouse and crushed it under his feet

As expected

『Are you kidding? Did you mislead me with this kind of play? I really don’t understand what you are doing!?』

『I am not kidding, you will understand soon』

From now on, you will suffer a gory experience

『Have you heard of the word “multiply like rat”?』 (1)

『Ah?』

『It is the word describing the terrific breeding power of mice. About 10 mice per childbirth, and those children can give birth to more children within a month. They continue to multiply no matter how many times you kill them, making it impossible to eradicate』

Hey, look carefully at your feet

The squashed spirit mouse……。

It became two mice after revival, you know?

『What!?』

『The spirit beast is created using the power of 「Mouse」 I had, its trait is the infinite multiplication. If it is cut into two, each of those fragments will regenerate and revive as 2』

Crushing, breaking

They multiply while reviving, so the state of affair always becomes worse

This is how dreadful the spirit mouse I created is

『Grey Ryuuga-san. The 「dragon」 you received is certainly the strongest. Not only its power is high, the outside is also hard, it’s correct to call it strongest』

However

It is not the only kind of strength

『Whether they are hit or killed, they will multiply into a flock with their excessive fertility. Number is a great strength. Even if each individual is weak, with the number of 1000 or 10000, they can destroy even the strongest lone enemy』

That is also humanity’s strength

Human gathered as a group and helped each other to survive in the nature. But despite being born as a human, you were too obsessed with power of individual

That’s why it’s natural that you lost

『Uwaaa!?　Stop!　Don’t cling to me!?』

Meanwhile, Grey Ryuuga ignored my warning and attacked the clinging spirit mice over again

They are killed

However, each fragment revives as a new mouse

There was only 1 mouse at first, but in a blink there were already dozens of them

It’s already a flock of mice

All of them headed toward Grey Ryuuga

『Of course, not only they can multiply』

I am the one who created the spirit mouse

Therefore I can produce more of them too

From the holy beast aura covering my body, small spirit mice appear one by one

『Infinite fertility. As long as my holy beast aura is activated, a threatening colony of 100, 1000 or 1000 will continue to increase. The beast demon’s power becomes more threatening with the sacred power of wisdom』

The name of this technique is……。

『……Holy beast wisdom ceremony <Kanatehon chuushingura>』 (2)

To defeat the one and only strongest dragon, how many thousands of mice are needed, I wonder?

(1): ネズミ算 means “multiplying like rats”, basically a mathematical geometric progression. First appeared in an arithmetic book from the Edo period, describe as follow

On New Year’s Day, a pair of mice appears and gives birth to 12 offspring. And there are 14 animals including their parents. In February, the children will give birth to 12 children each, so the total number of these rats will be 98 including their parents. In this way, once a month, when parents, children, grandchildren, and great-grandchildren give birth to 12 offspring each month, the number of animals in December is 27,682,574,402.

(2): 鉄鉄奔鼠神蔵 (read as かなてほんちゅうしんぐら)
鉄鉄 = iron/steel, also can mean sturdy/durable (like iron)
奔鼠 = rushing mouse
神蔵 = god/sacred warehouse (refer to the aura releasing the mice like keeping it inside a warehouse