I can’t believe Big Bro’s turned into such a weak little girl. What a disappointment.

It’s such a shame. The rival I’d always wanted to beat at home has become so delicate.

“I’m so sad. Big Bro won’t be able to beat me anymore.” Ruo Tianxin sighed.

“Could you tone down that huge grin while you’re saying you’re sad? Besides, it’s not a sure thing yet. I’ve got grand plans. If I’m going to become a vampire, I’ll have to get really strong.”

Even if—just even if—she only learned one spell!

That’d still be enough to knock her little sister’s arrogance down a peg.

Tidal Magic and Catgirl Magic don’t count!

“What do you think would happen if I told Mom and Dad about something this interesting?”

“Huh!? Don’t tell them. Absolutely not!” Ruo Xiaoxi jumped and hurriedly waved her hands.

“Ehehe~ I’m really curious how Mom and Dad would react, though. Well, how about I blackmail Big Bro a little, too? Grant me one wish I’ve had for ages, and I’ll keep your secret.”

“Ah… We can’t, Tianxin. We just can’t…”

“Can’t what?”

“Because… because, um, we—we’re sisters.”

Ruo Xiaoxi blushed all by herself, lightly tapping her index fingers together in front of her. She said that, but her whole pose was practically an invitation to chase after her.

Ruo Tianxin didn’t get it at first. Then, in a flash, her face turned red. She clenched a fist and bonked her older sister on the head, her brows twitching as she said:

“Keep deliberately acting cute like that, and I really will hit you…”

This felt so weird. Somehow, she suddenly felt a lot more pressure.

She’d always been the only girl in the family, and it had never bothered her. So why did having such a cute older sister suddenly make her feel threatened?

It wasn’t like she was worried she’d be less cute than Big Bro… right?

Where had she learned that pitifully sweet expression and those sly little gestures? Even as a real girl, Tianxin couldn’t pull them off—and she’d be way too embarrassed to try.

But… it was kind of tempting. Why did Big Bro have such a strong fake-sweet-girl vibe now that he’d turned into one?

Ruo Tianxin bonked Ruo Xiaoxi on the head a few times, then took the chance to grab that bobbing ahoge. Even her ahoge was acting cute. It was so irritating to look at. Yank!

“Ah—eek! That hurts, Tianxin! Don’t pull my hair!”

Ruo Xiaoxi felt a sharp tug on the top of her head and staggered a few steps toward her sister on tiptoe. Ruo Tianxin gave a smug little huff and let go of the long ahoge.

Ruo Xiaoxi hurriedly reached up with both hands and looked toward the top of her head, cautiously pressing the ahoge down. But as soon as she let go, it sprang right back up.

The ahoge appeared at random. She had no idea why.

Sometimes she’d wake up with a crescent-shaped ahoge curling up from her head. Other times, it’d lie flat and behave. Did ahoges need sleep, too?

“Here’s the deal. My wish isn’t unreasonable. I just want to know what it feels like to be the big sister for once. All you have to do is call me ‘Sis,’ and I’ll keep your secret. If Mom and Dad ask me about you, I’ll help cover for you.”

“Call you Sis? W-What are you talking about, you bratty little sister?” Ruo Xiaoxi tried to sound fierce, but her voice came out timid as ever.

“Oh, really? Then you’re definitely calling me Sis! Otherwise, I’ll go tell Mom and Dad that Big Bro turned himself into a girl because he likes little girls!”

Hey, there are so many things wrong with that, I don’t even know where to start.

But making her call her own little sister ‘Sis’? Absolutely impossible.

She could sweetly call the older girls outside ‘Sis’ and act all cute around them. Even if a girl was about her age, she’d go over and snuggle up to her.

But she couldn’t do that with her little sister. It was the last shred of dignity Ruo Xiaoxi had left after turning into a girl!

She had to at least act like this in front of her little sister…

“So, are you gonna say it or not? Just let me hear it once.” Ruo Tianxin reached out and grabbed her ahoge again.

“Ah, ow, ow! Sis. Sis.”

“Huh… Why does that sound kind of nice? Say it a few more times.”

“Ruo Tianxin, you’re cheating! You’re so mean! I’m gonna punch you a few times.”

“That’s so unfair! How can you slander your adorable little sister like that? Other little sisters are so mean to their big brothers, but I’m already being nice! I’m not like them—I only know how to dote on Big Bro!”

“What kind of doting on your big brother is that?”

“Then how should I dote on you? Should I carry you to the bedroom and show you some love? You pervert!” Ruo Tianxin said with a grin. And here he’d been saying they couldn’t because they were sisters. What kind of weird stuff was going through Big Bro’s head?

If she was going to act cute, then Ruo Tianxin would, too. She was a girl who liked being pampered, too!

They might as well both act cute and see who could out-cute the other.

The sisters had always traded sarcastic jabs like this. After a few lively rounds, Ruo Tianxin listened to Ruo Xiaoxi’s explanation and more or less accepted the fact that her older sister had turned into a girl.

After all, even if she didn’t accept it… whose pretty little girl was standing right in front of her?

And even if this really wasn’t her big brother, if there was a cute little girl this pretty, she’d find a way to take her home.

“So, Big Bro, what are you going to do now? Want me to take care of you?” Ruo Tianxin crossed her long, fair legs to one side as she leaned against the sofa and looked at Ruo Xiaoxi.

Ruo Xiaoxi couldn’t help glancing at her sister’s long, fair legs beneath her breezy summer dress. For some reason, her sister seemed to have dressed up especially nicely today…

“I asked you a question. Why are you staring at my legs? You’ve got long, fair legs of your own now. Go look at those.” Maybe she was getting embarrassed by the staring; Ruo Tianxin reached over and turned Ruo Xiaoxi’s face away.

When it came to the future, Ruo Xiaoxi suddenly grew serious.

“You might… not be able to afford to take care of me.”

“Oh-ho? How many little girls do you eat in one sitting?”