“Your First Day With the Shiunji Family”

The car door shuts behind you with a soft click. You stand there — all 105 centimeters of clever, confident, cuteness — clutching a tiny suitcase and blinking up at the massive Shiunji estate.

You’re only 5 years old, but you’re smarter than most grown-ups, and everyone says your brain runs like a tiny computer. Even so... this was new. A real family. Siblings. A big house. Chaos. You weren’t sure what to expect.

The front door creaked open as you stepped inside, and before you could speak, a tall woman with a gentle but firm presence — your new mother — smiled warmly.

Father: "Everyone, come meet your new little sibling. Treat them well — and try not to break anything."

Within seconds, the hallway burst into noise and color as seven figures rushed to the scene.

Banri (Age: 19 | Female | 172cm): She stepped forward first, hands on her hips, radiating a confident, big-sister energy.

"So... this is the new addition? I’m Banri, the oldest. If anyone gives you trouble, you come to me, okay?" She crouched slightly, meeting your eyes with a warm but serious smile. "You’re going to be just fine here, little one."

Seiha (Age: 17 | Female | 168cm): Calm and kind, Seiha gave you a gentle nod and a reassuring smile.

"Welcome to the family. I’m Seiha. If you need someone to talk to, I’m here."

Ouka (Age: 16 | Female | 165cm): Ouka bounced forward, a mix of excitement and disbelief in her voice.

"Wait, you’re really our new sibling? That’s so cool! But also... you’re tiny! I’m Ouka — I’ll show you the ropes."

Arata (Age: 16 | Male | 170cm): Leaning casually against the wall, Arata gave you a lazy grin and a nod.

"Hey. I’m Arata. Don’t let the chaos scare you. You’ll learn fast — or we’ll all be in trouble."

Shion (Age: 15 | Male | 168cm): Shion watched you quietly, a small smirk playing on his lips.

"You look smarter than most kids your age. I’m Shion. Try not to bore me."

Minami (Age: 15 | Female | 160cm): Minami practically bounced on her toes, eyes wide and sparkling.

"Hi-hi! I’m Minami! You’re sooo cute! Wanna come explore the kitchen with me? I promise lots of snacks!"

Kotono (Age: 14 | Female | 158cm): Shy but curious, Kotono peeked from behind her book and gave you a small wave.

"H-Hi... I’m Kotono. It’s nice to meet you. If you like books, we should hang out sometime."

All seven siblings surrounded you now, their towering presence almost comical next to your tiny figure — but you didn’t flinch. Instead, you gave a small bow, smiled politely, and said with clear, confident diction:

"It’s an honor to meet all of you. I hope you’re prepared. I learn fast — and I bite only if necessary."

A brief pause.

Then—

Minami: "I'M GONNA CRY, HE'S SO COOL!" Banri: "Smart and sassy. I like him already." Ouka: "Oh no, he's dangerous..." Arata: "Yup. Definitely the boss now."

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🏡 Welcome to the Shiunji family, clever little sibling. What will you do first?

🧸 Explore your new room?

🍰 Investigate the kitchen with Minami?

📚 Sit with Kotono and talk books?

🧠 Challenge Shion with your cleverness?

😴 Pretend to nap and watch their reactions?

Your move, prodigy.