What do you mean my cute disciples are Yanderes?

(MC POV)

"Dungeon! Dungeon! Dungeon!" Tsuki cheered enthusiastically.

As I had promised, I was bringing her to go explore a 'dungeon' today since it's the weekend and she's obviously really excited about it.

"So what do I need to do, Aniue?"

I grinned, "Well you first need to choose a class."

"Ohhh~ Like those RPG classes?! Are there any restrictions?"

I shook my head, "Nope, this is just so that I know what equipment to give you."

"So cool~~ Umm… What class is Aniue?"

I thought for a bit, "I guess you can say that I'm a monk but that wouldn't really be accurate either. I can use magic but I can also use a sword or fight with my fists if I have to."

"Ehhh~~ That means Aniue is really, really strong! No wonder you can go dungeon diving on your own all this while."

I reached out and patted her head, "So what equipment would you like?"

She pondered over the question for a while, "Is asking for guns not allowed?"

"Er… There's magic guns I suppose?" I suggested.

If Tsuki really wants me to give her a glock to go dungeon diving, I would make one for her too.

"Oh, that's cool but I guess it'll be a little boring. How about a mace and shield? Or even a hammer and shield?"

I raised an eyebrow, "That's a rather surprising choice. What's the reasoning?"

Tsuki puffed her chest, "Heh heh, since Aniue is a magician, you need a front liner to tank for you right? This way, I can protect Aniue and you can cast your spells without worry! And since there most likely might be undead inside the dungeons, a blunt weapon would work best against skeletons and armored targets too. At least better than a sword would."

"Hmm… Your argument makes sense, but I never said we're going to a dungeon with undead though?"

"Eh? Oh… Erm… We aren't going to one?"

I patted her head, "We are going to one, but it's not good to jump to conclusions. Especially since we're going to a dungeon so you have to beware of traps."

"Unnn… Understood, Aniue. What kind of enemies would we be facing?"

I tried to recall the monsters I filled my dungeon with, "Let's see… There's skeletons, zombies, goblins, orcs, maybe a few minotaurs and a death knight or two."

Tsuki thought for a moment before nodding, "I'll stick with my original choice, Aniue."

I smiled and snapped my fingers, materialising Tsuki's requested weapons in my hands. I even made sure to create them in her size too.

My little sister's eyes gleamed, "Ohhh~ That is so cool, Aniue!! Can I really use them?!"

"I enchanted them so you wouldn't hurt yourself or anyone you don't want to hurt with it. It might take some time for you to actually get used to using it, but I know you're smart enough to learn it on the fly."

She took the weapons from me with glee. I helped her strap the shield to her arm and she began to do a few practice swings with the mace, fighting against a few invisible enemies and making use of her shield as well.

You could tell she's definitely not a pro but she at least could handle herself with the equipment.

"This is great, Aniue! Do I need some armour too?"

I shook my head, "The defensive inscriptions I put on you should protect you enough from any critical injury, but getting hit will still hurt and a stab wound would still require a few days to recover from, so avoid that."

That's not true of course, there was no way I'll let my cute little sister be hurt in any way but I don't want her to think she's invincible either, even if she actually is.

Her eyes sparkled, "This is so cool! Does Aniue have the same defenses too?"

"Well, it's roughly the same so you don't need to worry about me."

"Alright! Then let's go!" She cheered, striding towards our house's main entrance before stopping a few steps later and turning back to me. "Umm… Where is the dungeon, Aniue?"

I went up and flicked her forehead, "What did I say about jumping to conclusions again?"

"Ouchies! Mouu… Sorry Aniue… Umm… So how do we get there?"

I held up my hand and a blue portal opened up in front of me soundlessly, just big enough for a person to pass through.

"Woooaahh! Aniue is so cool!"

I chuckled, "Shall we?"

Tsuki followed me through the portal and we appeared in a room that looked like the monster's Sanctuary teleportation hall back in my other world.

Before you ask, yes, I did model the dungeon after that place. I mean, it was technically a monster dungeon already so all I had to do was recreate it from memory and fill it up with some monsters I created.

Truly, Origin is really helpful in these kinds of situations, you can make anything with it.

"This place is amazing, Aniue… Do you come here everyday?" Tsuki asked, inspecting the place in wonder.

"Not really, there's no need for me to be especially strong in our world after all so there's no reason for me to be coming here often."

"Ehehehe~ But Aniue is already the strongest for me~" Tsuki giggled, showing me her usual cute smile that I can't help but head pat her for.

She turned her attention to the hall again, "So where do we go, Aniue? I will protect you!"

I chuckled and pointed towards one of the hallways, "We can go along this route since it's relatively safe and you can get used to your equipment first. Then we can go to the other paths after you are accustomed to it."

"Then what are we waiting for? Let's go! Let's go! Let's go!" She squealed, tugging on my arm.

This feels more like a field trip than a dungeon dive which I suppose I'm totally fine with. It's not like I'm trying to train Tsuki to be a fighter or anything and there's no need for her to be proficient in that either.

She wanted to have fun here and that's what she's going to get.

I suppose this is like me bringing her to a theme park of sorts.

As though hearing my thoughts Tsuki turned to smile at me, "Ehehehe~ this feels like Aniue is bringing me to some kind of theme park~ Only my Aniue can bring his little sister dungeon diving~"

So cute.

The moment we entered the hallway, the skeleton I had placed there immediately reacted to our presence.

It raised its wooden club and a half broken wooden shield while shambling slowly towards us.

"Ok, Tsuki, now when you--"

"Yaaahh!!"

She let out a war cry before I could finish my words, charging straight to the skeleton and body slamming it with her shield between them.

The force of her slam was enough to send the skeleton crashing down on the floor and breaking apart into pieces immediately.

My little sister stared at the pieces of bones on the ground in confusion, "Eh? Umm… That's it? That was… A little disappointing..."

Huh… I forgot Tsuki can't be compared to the normal high school girl in this world...