Honkai: Star Rail: I'm a Big Villain, Opening with the Annihilation of the Astral Express Crew

Her fingertips gently landed on the piano keys, her voice carrying a hint of nervousness.

"But when I play, I'm thinking of you, brother."

"Brother, happy birthday."

The music began.

The melody was unexpected.

It didn't entirely conform to the "optimal" structure you recognized, yet it possessed a peculiar, heart-stirring power.

You listened quietly.

For the first time, you didn't subconsciously analyze its structure and technique.

The music was like a mirror, reflecting corners of your heart that you hadn't fully explored yourself.

It seemed that... it wasn't just cold order there.

As the piece ended, the lingering sound resonated.

Robin turned to look at you somewhat apprehensively, her fair cheeks slightly flushed.

"How was it, brother?"

You were silent for a moment.

Standing up, you walked over to her.

Reaching out, you gently pressed your hand on the keys she had just played, feeling the lingering warmth.

"The structure is very bold."

"But the logic is self-consistent, forming a unique harmony."

"It's very beautiful."

You added, an objective assessment.

"I like it very much. Thank you for the gift, Robin."

This sentence seemed to carry a bit of other emotions.

"I'm glad brother likes it."

Robin smiled happily; this was the best recognition she could receive.

[At 15, your position in the family steadily rose.]

[Your sister, for her musical dreams, began to leave Penacony and travel to other planets for musical activities.]

[You kept in touch through letters and communications.]

[You always asked her to come back and see you more in your replies, that Penacony was the safest place.]

[At 16, Geffert's power reached its peak.]

[You were regarded within the family as its future heir, which was within your plans.]

[Your sister Robin's fame grew rapidly, becoming a rising star.]

[At 17, Robin's songs spread to more star systems.]

[But her success made you feel more hidden worries about the chaotic and disordered world outside of Penacony.]

[It was unlike the Family's dreamscape, unable to ensure her safety with order. This sense of loss of control displeased you.]

[At 18, in the year you officially came of age.]

[Geffert, who had become the Dream Master of Penacony, passed on the position of Family Head to you in the presence of the entire Oak Family.]

[You stood at a high place, overlooking the Family members.]

[From today onwards, you, as Sunday, the Oak Family Head, will reshape this "Dream Star" with the absolute order you believe in.]

[Not for the Family, but for... Robin.]

[At 19, after you took over as Family Head, complex affairs overwhelmed you like a tide, and your daily work hours exceeded 12 hours. But you never complained about the heavy workload, because this was your responsibility as Family Head.]

[However, an urgent letter from Epsilon made you instantly drop everything at hand.]

[The contents of the letter were glaringly brief.]

[Your sister, Robin, had an accident there.]

[Shot in the neck and injured!]

[Although the letter mentioned that her life was not in danger, the words "vocal cords damaged, may not be able to sing in the future" still made you worry.]

[You immediately used your Family Head authority to mobilize all resources, regardless of any cost, just to ensure that your sister could return to Penacony in the fastest and safest way.]

[A few days later, the Oak Family's private reception room.]

[The door opened.]

[You saw your sister returning, travel-worn.

She looked very tired, her face paler than you remembered, but she still tried to maintain the elegant posture that the Oak Family Head's sister should have.]

She wore a high-necked garment, carefully concealing something.

But you still caught sight of the outline of a wound on her skin, faintly visible at the edge of her collar.

"Brother, I'm fine, don't worry," Robin said, offering a slightly weak smile. "It was just a small accident, I'll be fine soon."

But your gaze couldn't leave her neck.

That scar, even through the clothing and dressing, seared your nerves.

An indescribable emotion exploded in your chest!

It was overwhelming rage.

It was the lingering fear of a close call.

And even more... a chilling sense of powerlessness, even as the head of the family!

Reality slapped you hard across the face!

Harmony couldn't protect her!

This chaotic universe couldn't protect her!

Seeming to sense your silence and gaze, Robin tried to reassure you:

"Really, there's nothing to worry about, brother. I was just too careless this time, I'll be more careful next time."

Next time?

Those two words pierced your mind like sharp needles.

You were suddenly alarmed, there's going to be a next time?!

Let her leave Penacony again?

Go again to those wild lands filled with the unknown and chaos?

Face again the danger that could rob her of her voice, even her life?!

No!

Absolutely not!!

[At this moment, you begin to think about how you can ensure your sister's absolute safety—]

[1. Trust and support Robin's choices, and use your power as head of the family to equip her with the best security.]

[2. Keep Robin in Penacony, restricting her outings in the name of protection.]

Jiang Mo pondered, although he knew Robin would be fine later, but...

If he let her out, Robin would later help the protagonist group beat him up, could this simulation be the same as the game's plot?

I don't want to be run over by my sister and others in a train!

That would damage our brother-sister relationship too much!

What? A sis-con?

I am a sis-con, so what?

Must choose 2!

[You chose to "protect" her in Penacony. Villain value +50.]

[At this moment, a thought takes shape in your mind with unparalleled clarity—]

[Must ensure my sister's absolute safety.]

[Forever.]

[You take a deep breath, and a gentle smile returns to your face.

"It's good that you came back safely, Robin."

You step forward and gently support her shoulders, as if she were something fragile.

"The outside world is too dangerous."

"You should rest well in Penacony this time, the family will provide you with the best treatment."

"As for going out... we'll talk about it later."

You gaze at her, your voice incredibly gentle, but in the depths of your eyes flickers a near-obsessive determination.]

"With me here, I won't let you encounter any danger again."

[From this moment on, you make a secret decision.]

[To turn Penacony into an absolutely safe "birdcage."]

[As solid as a rock, shielding it from all storms.]

[And your most beloved Robin will always sing safely under your protective wings.]

[Only for you, and your order.]

Chapter 5 Order

[At 20 years old, under the guise of recuperation, you built a gilded cage for Robin at Dewlight Pavilion and had her move in.]

[Robin didn't suspect a thing and readily agreed. After all, you're her brother, and she always feels like whatever you say is right.]

[Every day, without fail, you make time to visit her, whispering repeatedly in her ear about the chaos and danger of the outside world.]

[You emphasize that only here is the home where she can truly feel at peace and rest.]

[Repeating endlessly that all of this is for her own good.]

[Robin vaguely senses that something is amiss, but under your persuasion, she accepts the arrangement.]

[This day, the new laws you're pushing through are met with resistance.]

[A group of local snakes entrenched in the commercial district, small gangs who live by extortion and smuggling, actually dare to openly challenge your authority.

They not only ignore the laws, but even attack members of the Hound Family who went to enforce them!

Very well.

This is precisely the opportunity you've been waiting for.

The perfect moment to display the iron fist of the new family head and establish your authority to intimidate the rabble.

You personally lead the team, quickly pinpointing their hideout.

During the subsequent raid, you order your subordinates to clear the area, then face the ferocious gang leader alone.

Before your absolute power of Harmony, all his resistance seems pale and futile.

Dreams shattered, howls cut short.

There's not the slightest ripple in your eyes, as if you'd merely crushed an insect.]

[Villainy +100]