Shirayuki Tomoe's Seven Days of Terrible, Lovely Chaos
Tomoe Shirayuki, a VTuber from NIJISANJI, is a soft-spoken, slightly scary older-sister type. Her motto is 'survival of the fittest,' and she plays a sadistic character on stream—but in truth, she loves cute things and is terrified of bugs and Japanese-style horror. One day, for reasons nobody explains, she has to let various NIJISANJI livers stay at her apartment for an entire week.
It starts with a vague notice from the agency: 'Please take care of a new liver for one week.' It doesn't say wh
Shirayuki Tomoe's Seven Days of Terrible, Lovely Chaos - My kouhai barges in to probe Tomoe.
Morning light filtered through the lace curtains into the living room.
Tomoe stood in the kitchen, toasting bread. The scent of butter filled the room. Beside her, Runa was washing vegetables in an apron. Her silver twin-tails sparkled and swayed with every movement.
"Onee-sama! I cut the tomatoes so beautifully!"
Runa held out the cutting board. The tomato slices were all different sizes. But Runa's golden eyes shone with expectation.
"……Well done. Next time, try cutting them a little thinner."
Tomoe said this in a low, sweet voice, gently patting Runa's head. Runa's face turned bright red as she squirmed with delight.
"Onee-sama patted my head……! I can do my best all day now!"
(She's going full throttle from the morning……)
Tomoe sighed inwardly. But on her face, she wore the composed smile of a do-S onee-sama. That was the brand of the VTuber known as Shirayuki Tomoe.
The seven-day cohabitation with rookie liver Ginka Runa had begun yesterday. It started with a vague notice from the agency, and it had been turbulent from day one. A giant moth appeared on the balcony, and Tomoe had closed the window and been unable to move for thirty minutes. Yet Runa had mistaken it for Tomoe glaring the moth to death, deepening her admiration even further.
(Today, I have to be the perfect do-S onee-sama.)
Tomoe steeled herself inwardly.
"Runa, once breakfast is ready, wipe down the table."
"Yes! Onee-sama!"
Runa answered energetically and picked up a dishcloth. She looked like a puppy wagging its tail.
As Tomoe plated the toasted bread, she thought about the day's schedule.
(No stream today. Maybe I'll teach Runa about streaming mindset. And tidying up the room……)
That was when it happened.
Ding-dong.
The doorbell rang.
"……Oh? Who could that be?"
Tomoe tilted her head. A delivery, perhaps. Just as she thought that and started toward the door, the bell was hammered repeatedly.
Ding-dong-ding-dong-ding-dong-ding-dong!
It rang over ten times without pause.
"Wh—what is it!?"
Tomoe nearly shouted in her natural voice. She hastily covered her mouth and reset to a low tone.
"……Runa, wait here a moment."
Tomoe headed to the door and peered through the peephole. Standing there was a girl with a short bob of bluish-black hair. Her bangs were cut in jagged spikes, slightly styled upward with wax. Sharp, vivid blue eyes stared fixedly at the door.
A face she didn't recognize.
Tomoe opened the door.
"It's Tomoe-san! Awesome! Just like Runa-nee said!"
The girl shouted, then stepped inside without removing her shoes.
"W-wait! Your shoes!"
Tomoe's voice had completely reverted to normal.
"Whoa! It's so spacious! You've got streaming gear! The TV is huge!"
The girl dashed into the living room, looking around everywhere. Tomoe followed after her, dumbfounded.
"……Runa. Who is this?"
Tomoe demanded in a low voice. Runa, for her part, was smiling happily.
"Onee-sama! This is Raiden Mio-chan! She's my little sister figure, and a fellow NIJISANJI liver!"
"Little sister figure…… the one you mentioned yesterday."
"Yes! Mio-chan, greet Onee-sama!"
The girl called Mio stood before Tomoe and grinned, showing a fang.
"I'm Raiden Mio! Fifteen years old! Nice to meet ya, Tomoe-san!"
"……Nice to meet you."
Tomoe felt a headache coming on, but maintained her do-S character's smile.
"My, what an energetic girl. But if you're a guest, do take off your shoes. Anyone who dirties the floors of my castle gets punished."
She whispered in a low, sweet voice. A normal kouhai would shiver and comply.
However.
"Punished!? What would you do to me!? I'm super curious!"
Mio's eyes sparkled as she pressed closer to Tomoe.
(This girl isn't scared at all……!)
Tomoe broke into a cold sweat internally.
"……Anyway, take off your shoes."
"Okaaay."
Mio finally removed her shoes, then began rummaging around the room.
"Huh, Tomoe-san's room has more of a lived-in feel than I expected!"
"Of course it does. This is my home."
"Oh, what's this? A stuffed animal? That's so cute!"
Mio dashed over to the wall covered with plushie shelves. Tomoe's heart jumped.
"……Those are for research. I collect them as reference material for stream planning."
Tomoe said, feigning composure. Mio tilted her head.
"Huh, research material. But they're displayed so carefully?"
"Reference materials should be handled with care. And you shouldn't touch my things without permission."
"Okaaay."
Mio answered obediently, but her eyes were still darting around. Eyes like a cat searching for something—hunting prey.
(I have nothing but bad feelings about this……)
Tomoe muttered inwardly.
Runa, meanwhile, was beaming behind Mio.
"Mio-chan, Onee-sama's room is so wonderful, isn't it? When I first came yesterday, I was so moved I almost cried!"
"Runa-nee cries at everything."
"I didn't cry! I was just moved!"
While the two were playfully bickering, Tomoe resumed breakfast preparations. The bread was getting cold.
"Have you two eaten breakfast?"
"Ah, not yet! I'm starving!"
"I want to eat Onee-sama's bread too……"
Runa gazed at Tomoe with tearful eyes.
"……Fine. I'll prepare some for Mio too, so go wash your hands."
"Yay! Tomoe-san's homemade breakfast!"
Mio bounced toward the washroom.
As Tomoe toasted additional bread, she pressed her temple.
(Why is this happening……? I'm only supposed to be looking after Runa.)
"Onee-sama, I'm sorry. When I told Mio-chan my address, she absolutely insisted on coming……"
Runa said apologetically.
"……I see. Well, I don't mind having another kouhai. As long as she can keep up with my guidance."
Tomoe wore her do-S smile. Runa smiled with relief.
"Onee-sama is so kind!"
(It's not kindness—I just can't say no.)
Tomoe retorted inwardly.
Breakfast was lively.
Mio put a bite of Tomoe's scrambled eggs in her mouth, and her eyes went wide.
"So good! Tomoe-san, you're an amazing cook!"
"Naturally. Did you think the food served in my castle could be anything less than delicious?"
"Onee-sama's cooking is truly wonderful! Last night's dinner was incredible too!"
Runa said with deep emotion. Tomoe felt rather pleased.
"Fufu, is that so. Then eat more. You're both still growing, aren't you?"
"Tomoe-san, you're like a mom!"
"……I am not a mother. I am Onee-sama."
Tomoe's voice dropped a register. Mio just laughed and waved it off with "yeah, yeah."
(This girl—my do-S act has no effect on her at all……)
Tomoe ground her teeth inwardly.
After breakfast, Tomoe began cleaning up. Runa offered to help and carried dishes.
Mio, on the other hand, was wandering around the room again.
"Tomoe-san, what's this room for?"
Mio opened the door to the guest room—the room Tomoe had frantically cleaned yesterday for Runa's stay.
"It's Runa's room. For now."
"Huh, Runa-nee sleeps here! So lucky! I wanna stay over too!"
"……You go home."
"Ehh! Stingy!"
Mio pouted, but quickly shifted her interest elsewhere.
"Oh, what's in this closet?"
Mio reached for the closet in Tomoe's bedroom.
"Hey, don't open that without permission."
Before Tomoe could stop her, Mio opened the closet.
And found it.
The bottom shelf of the closet, packed full of insect repellent supplies. Four cans of bug spray, six repellent plates, two ultrasonic repellent devices. Items bought in bulk at the drugstore, lined up like a secret armory.
"……Wait, what is this?"
Mio's voice went serious for the first time.
Tomoe's heart lurched violently.
(This is bad, this is bad, this is bad!)
Alarms blared in her head. But she didn't let it show on her face. She couldn't. If she panicked here, the do-S character would crumble.
"……Ah, that. Insect repellent measures for streaming. Standard preparation for a professional."
Tomoe spoke slowly, in a low, sweet voice. She tucked her hair behind her ear with her fingertips—her usual habit.
"Huh, bugs show up during your streams?"
"Especially in summer. Keeping insects out so I can focus on streaming is only natural."
"But buying this much? Four cans of bug spray?"
Mio's blue eyes stared intently at Tomoe. Eyes full of pure curiosity.
"Bulk buying. Purchasing when prices are low is the mark of a wise housewife."
"Housewife……?"
"……The mark of a wise Onee-sama."
Tomoe corrected herself. Mio still looked skeptical.
At that moment, Runa clapped her hands.
"As expected of Onee-sama! To prepare this thoroughly for perfect work performance at all times……! I'm so moved!"
Runa's golden eyes were filled with admiration.
"……Indeed. You should learn from this too, Runa."
Tomoe smiled elegantly. Inside, sweat was pouring down like a waterfall.
(Saved…… by Runa's natural positivity……)
Mio still didn't seem fully convinced, but she closed the closet for now.
"Hmm…… Well, I'll let it slide."
(What do you mean, "let it slide"? It's the truth.)
Tomoe retorted inwardly.
Mio adjusted her backpack and pulled something out.
A convenience store bag.
"Oh right! Tomoe-san, look at this! I found this at the convenience store—there's this super funny gummy!"
What Mio took out of the bag was a gummy in a transparent package.
The shape was—a beetle larva.
White, plump, and realistically shaped. Three of them lined up in the package.
The color drained from Tomoe's face.
(What is that, what is that, what is that!?)
She desperately suppressed the trembling in her fingertips.
"These are larva-shaped gummies! Super realistic, right!"
Mio thrust the gummy right up to Tomoe's nose.
The larva shape filled Tomoe's entire field of vision. White, squirming, segmented—
(Nooooooo!)
She screamed internally.
But her face was smiling. The composed smile of a do-S onee-sama.
"……My, you've brought something interesting."
Slowly, lowly, so her voice wouldn't tremble.
"Wanna try one? They're supposed to be pretty good!"
Mio brought the gummy closer to Tomoe's mouth.
(Stop it, stop it, stop it!)
Crying internally, Tomoe instead put on an even more intimidating smile.
"……If you're going to offer something to someone, taste it yourself first."
Low, sweet, and cold.
Mio's movement stopped.
"……Eh."
"If you want me to eat it, then you eat it first and prove how delicious it is. Or are you afraid to eat it yourself?"
Tomoe placed a finger under Mio's chin and tilted her face upward. Her purple eyes caught Mio's blue ones at close range.
"……I-I'm not scared."
Mio flinched slightly.
"Then eat."
"……F-fine."
Mio reluctantly took the gummy out of the package and put it in her mouth.
"……Oh, it's actually pretty good."
"Is that so. Well, good for you."
Tomoe smiled and stepped away from Mio.
Runa was watching Tomoe with sparkling eyes.
"Onee-sama……! To not even flinch at insect gummies……! Amazing! Onee-sama is a strong person who wouldn't be fazed by mere bugs……!"
"Naturally. Who do you think I am?"
Tomoe elegantly swept her hair back.
(I thought I was going to die……)
Inside, it was a storm.
Mio had not missed Tomoe's momentary pallor.
That instant when she'd thrust the gummy at Tomoe's face. Tomoe's complexion had definitely changed. Her fingertips had trembled, just slightly.
(Tomoe-san…… doesn't like bugs.)
Mio's lips curled into a smirk.
"Tomoe-san, let's go get some fresh air! There's a park nearby, right? Sakuradai Park!"
"……The park?"
"Yeah! The weather's nice, so let's take a walk! Runa-nee, you come too!"
"That sounds nice! Onee-sama, let's go!"
Runa said happily. Tomoe couldn't find a reason to refuse.
(The park…… probably full of bugs……)
Tomoe's heart sank to the depths.
"……Very well. A bit of fresh air doesn't sound bad."
Tomoe stood up, wearing her do-S smile.
The three of them left Maison Fiore.
Outside, it was a refreshingly clear day. They walked through the residential streets. From Tomoe's apartment to Sakuradai Park was a three-minute walk. Practically nothing.
Along the way, Mio pointed at various things.
"Oh, Tomoe-san! Spider web on that utility pole! There's a huge spider!"
Tomoe didn't move her gaze.
"……I see. Spiders are beneficial
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