Chapter 4

Regret comes too late.

No matter how much you regret, time cannot be turned back.

Then, hide it, cover it up, and aim to be just an ordinary person!

I won’t be killed.

I won’t be caught.

After all, the number of years I’ve lived is my experience, so it’s easy to be just an ordinary person!

After a few minutes of confusion, I came to this conclusion.

It shouldn’t be that difficult.

In fact, unlike my stepsister, I am truly just an ordinary person.

I intended to remain that way, so it will surely be fine.

As long as I don’t accidentally use the “darkness.”

...I have to be careful.

“Big sister? Where are you?”

Tenshi’s timid voice startled me as it came from the “front.” I hurriedly moved from the “back” to a place where people wouldn’t see me, slipped through the gaps between the people surrounding the [Spring of Awakening], and went to Tenshi’s side.

This is a basic skill that one naturally acquires when playing the role of Tenshi’s stepsister.

“Sorry. It was too bright, so I moved back a bit.”

“Too bright?”

“It was an incredible light. By the way, did everything go well?”

“Yeah.”

Tenshi smiled warmly and nodded.

“A very beautiful goddess appeared and said she would bestow divine protection. She said to gather companions and surely defeat the demon king.”

How much of this troublesome matter do I intend to burden this simple and innocent girl from another world with?

Japanese people are already weak for authority.

Unaware of my frown, Tenshi hugged me tightly.

“Big sister, I’ll do my best. I’ll definitely protect the people of this world and you too.”

Originally a superhuman, Tenshi, with the “divine protection” and ability adjustments given to her as the “hero” by that goddess, must have become even more superhuman.

Those minor enemies wouldn’t stand a chance against her.

But.

I cursed this world that made this gentle girl a “hero” and my inability to take her home immediately.

...In that case, I’ll definitely assassinate the king.

Right before we return to our original world.

In an instant.

While hugging Tenshi and making this resolve, the prince said to me,

“Then, please, Lady Rio.”

“...Huh?”

Not immediately understanding, I responded with a blank voice.

The prince was trying to let me enter the [Spring of Awakening] as well.

“Since you are Lady Amane’s sister, Lady Rio, you must have some kind of power.”

“No, that’s not the case. We’re only stepsisters. We’re not blood-related.”

The prince nodded in understanding.

Of course.

We don’t look alike at all.

“Big sister is big sister!”

Tenshi was strangely angry about something.

I get it. You’re my superhuman stepsister.

I patted her head to calm her down and said to the prince,

“So, I’m fine. Isn’t the king waiting? Tenshi’s ceremony is over, so let’s go quickly.”

Despite Tenshi’s discontented face, I walked along with the prince who readily agreed, leading her.

No, I’m fine.

I can use something dark now.

If I enter the [Spring of Awakening] and it gets revealed, it could be problematic, right?

Of course, I couldn’t honestly say that, so we left the stone temple and headed towards the luxurious castle connected by a corridor.

I looked around like a country bumpkin, and only then did I realize that my vision had changed.

Is this what they call “magic power”?

I could see colored auras in some places, and when I stared at them, I could even see what looked like magic arrays and incantations.

...But, even if I can see them, I don’t know what they are, so it’s useless.

“Your Majesty, I have brought the hero, Lady Amane, and her sister, Lady Rio.”

In the audience chamber with the king on the throne, the first prince introduced Tenshi, who was standing next to him, and then introduced me, who was standing blankly behind him.

“...Hmm. Well done.”

The middle-aged man with a long, full beard, dressed in luxurious attire like the castle, spoke from the throne.

The audience chamber, with a red carpet, was spacious, and the ornate chandeliers on the ceiling sparkled.

At least, I no longer hesitate to mooch off for living expenses or to extort compensation.

And this is the guy I’ll assassinate, I glanced at the king on the throne and memorized his face and build.

I thought about pulling out his beard before killing him and tried to keep my presence as low as possible.

Well, it’s probably fine even if I don’t worry too much, since Tenshi is here.

The natural idol always captures everyone’s attention and interest, so it’s unlikely anyone will notice me.

Behind Tenshi, who answered the king’s words confidently without any signs of nervousness, having grown up dealing with adults, I, who had finished memorizing the king’s appearance, only had to endure the wait until the audience ended by suppressing yawns.

The stage and character descriptions are quite detailed, but it will continue in this style. For reference, the setting is medieval Europe.