After defeating the demon king in another world and returning to Japan, a dungeon appeared on the ground. - Chapter 59

Chapter 59

“Onii-chan…! I-I want to try to go outside!! I think.”

“Haah…?”

On the morning next day, my younger sister Miku suddenly declared that.

As it was a holiday, I had just woken up around noon, and was preparing to go out and get some household items.

Since some money had come in, I decided it was about time to replace the worn-out furniture and utensils that were on the brink of expiry in the house once and for all.

In the midst of this, Miku suddenly came to me and announced her intention to go outside.

“W–what’s wrong, Miku…? Did something happen…?”

Absolutely baffled, I asked her in return.

With a determined expression, Miku replied, “B–because onii-chan is working so hard as an explorer… s-so, I-I felt like, even Miku needs to work hard as well…”

“N-no… Mi–Miku, I-Its not like you need to work hard at all you know! It’s okay to stay cozy and feel at home you know!”

After being bullied and becoming a shut-in, Miku had developed an extreme aversion to going outside.

Miku had a history of self-harm and suicide attempts when stress built up in her, so I wanted her to live in the most stress-free environment as possible.

There was no need for her to force herself and go outside.

Your Onii-chan can take care of you for the rest of my life.

“Un~nn… When Onii-chan is risking his life as an explorer… It’s not fair for Miku to just stay at home…”

“N-no, it’s not like…”

I mean, the fact that — actually I have the power of a hero in me from a different world, so I don’t kind of risk my life exploring dungeons or anything of that sorts…

Should I perhaps tell this to Miku…?

“W-what the, Miku…!? What’s with those cuts on your arm…!?”

I suddenly noticed several cuts on Miku’s wrist.

“Eh, ehehe… I kind of did that the other day when Onii-chan was out exploring a dungeon…”

“Haaah!?”

“Even though Onii-chan is earning for us while putting his life on-line, … so, it’s a punishment for Miku, w–who does nothing and remains a coward even now…”

She says that while rubbing her cuts.

OH MY GAAAWWWWDDDD!!

Is my little sister once again coming to self-harm!?

“Mi-mi-mi-miku!! Pleasumi, please, I beg you, stop harming yourself!!”

“Muu… but, after all, Miku is a coward… all in all, a burden to Onii-chan…”

“You’re not a burden!! Miku is Onii-chan’s treasure!! You’re my hope!!”

I hugged Miku tightly.

“Onii-chan can work hard only because of Miku!? It is only because Miku keeps on waiting for me to return home, you know!?”

“Really…?”

“Yeah, really it is.”

“B-but… then Miku will still be in pain… being alone at home… I feel like being left behind by Onii-chan…”

“T-that’s not… I never ever thought that …”

“Hey, Onii-chan. I, Miku… wants to move forward, even if it is just a little… even if it is for a little while, I want to try and be able to go outside again…”

“Miku…”

Looking into her teary eyes, I was completely convinced.

“O-okay… but promise me something.”

“Promise?”

“For the time being, whenever you go out, you’ll be going out with Onii-chan, got it? And… if you feel stressed, even if a little, you have to tell me. I don’t want you to hurt yourself once again…”

“U-unn… I’ll try…”

“And after that… Miku. This is the most important thing…”

“…?”

“P-please… don’t ever think about… suicide or anything… If Miku dies, Onii-chan won’t be able to go on with life anymore, so, please…?”

“Un. I won’t do it, ever. I love you forever, Onii-chan.”

Miku hugged me tightly.

I gently stroked the back of her head.

With that… I decided to go shopping along with Miku from that day forth.