Nero was very tired and perhaps knowing that Elsa is around, she relaxed a little too much and was less cautious, and had a peaceful night's sleep.

The moment she woke up she stretched out on the bed and yawned, putting her hand back on the bed, she felt something soft and warm on both sides.

"...

"

'When did these two enter my room?' Nero squeezed her hand a little and felt the softness of the two and ended up comparing... Then she squeezed herself. 'Mine is a little softer...'

After getting out of bed, she saw that even when her breasts were groped for her, they were both still asleep. Or they pretended really well, whatever the reason, Nero left and went to the bathroom to water the plants. 'Damn it...'

She knew there was something wrong, something she never needed to worry about in her life, it came for the first time. The color inside the toilet changed to blood red, Nero, not knowing what to do, used mana to create a band and plug the leak.

After washing her hand and brushing her teeth, she returned. Choko and Yui were still sleeping.

'If I did both naked and pretended to catch both 'cheating' on me. Wouldn't it be fun to see their reaction?' For a moment she considered doing this, but it could be that their relationship got worse for good. So she forced herself to forget about this idea, although until she changed clothes and left the room, she was still tempted to do so.

Wearing painted yoga pants that accent her round ass and a bare sports blouse that showcased her flat stomach, Nero walks down the aisle with her hair in a high ponytail, swaying from side to side.

She had a gleeful look in her eyes as she took in things on the way to the living room on the first floor.

"Nero. Good Morning.

" Elsa changed from an indifferent expression to a beautiful smile the moment she saw Nero, but then frowned as she noticed that Nero looked strange:

"What is it?

"

"Big Sister, I'm on my period…

" Seeing that there was no one around, she told Elsa, she felt a little shy about talking about it.

"Oh, I have something here that will help.

" Elsa said and pretended not to notice what she was called, afraid to embarrass Nero, especially after learning that she was on her period:

"Come to my room.

"

"Mm.

" Nero obediently followed her into the bedroom.

It was well organized, and without much furniture, it was pretty much the same decor as her bedroom, which wasn't strange since Nero had heard her say yesterday that she'd never been here before.

Elsa was not one for flowering words and was quite direct when she took something and handed it to Nero:

"With one hand hold the tampon and with the other spread your vaginal lips apart. Then insert the tampon by pushing your finger into the entrance to your vagina. If it's your first try, use a mirror. But since practice makes perfect, you probably won't need it for long.

"

"...Thank you, big sister.

" Nero hugged her, acting strangely, and went to Elsa's bedroom bathroom.

Elsa was still frozen in place, she felt the heat of Nero's embrace on her body in disbelief. Not only did Nero call her big sister, but she also embraced her. It made her smile a lot, but she tried to contain her smile so she wouldn't look like a fool in front of her little sister.

Minutes later, Nero came out of the bathroom, she bit her lower lip and said in a sweet voice:

"Got it... Thanks again, big sister~

"

Elsa's body hair stood up, she felt like hugging and kissing her sister's face, but she was afraid to scare her if she was too aggressive.

"Don't worry...

" Elsa smiled softly, although she wanted to hug Nero and pamper her now.

But to Elsa's surprise, or perhaps a divine being heard her prayers? Well, whatever it was, she was happy to feel Nero's warm, soft body hugging her.

After a while, Nero looked at her and said with a pout,

"Sister, you took too long to find me...

"

Elsa felt her chest hurt when she heard Nero say this in a pitiful way, she was saddened, but she was stunned right after, she felt herself on a roller coaster of emotions.

"But I forgive you.

" Nero was only a few inches shorter than Elsa, she stood on her tiptoes and kissed Elsa's cheek, and licked her lips innocently but incredibly seductive.

"Nera…I mean, Nero. Thanks.

" Elsa gets emotional and even cries.

"You don't need to thank me for something like that, but if you really want to reward me, you can start by having a date with me.

" Nero stuck out her pink tongue and smiled in a cute way:

"I want to go out with the big sister and have fun~

"

'Are her hormones talking?' Elsa guessed, but she didn't care if that was the real reason her little sister had forgiven her, or if that was why she asked her out for fun.

Whatever the reason, Elsa was happy, she gave her best smile and said,

"It would be a pleasure to join you.

"

"So formal hehe~ Big Sister, you can talk more freely with me, I don't want to feel distant from you, you know~

" Nero acted flirtatiously and hugged Elsa's arm, she smiled as she looked into Elsa's fascinating eyes and her eyes curled into two crescent moons with two pretty pink dimples in her cheek.

It was so fascinating, it made you want to bite. Holding back the momentum she got, Elsa smiled and said,

"It's okay, I won't do it again.

"

"Good!

" Nero laughed and said,

"Let's go, before Choko and Yui wake up, if they wake up, we won't have a chance to go out alone together.

"

"Okay.

" Elsa didn't even care that she was just wearing a simple outfit, it was just black spandex pants and a black tank top, showing some of the white bras she was wearing.

Walking out hand in hand with Nero, Elsa still felt like she was dreaming. At some point, she even pinched herself and saw that it was real.

To regain Nero's trust, and to be treated like a big sister again, Elsa was willing to wait for months, even years, of course, she also connected the dots and figured that the hormone change made Nero act differently, maybe she even forgot about some traumatic things in the lab.

Elsa's eyes turned cold when she saw the looks of some pretty high level Hunters. She almost wanted to rip them to shreds with a wind scythe, but she wasn't going to act irrationally when her little sister didn't even seem to notice.

It turns out that the higher level humans had a greater tolerance for Nero's charm and it didn't turn into adoration but lust. This made the pants of some of them so tight that they had to go out for a shower in cold water.

Elsa may not stay here, but she was known, and no one would dare disrespect the girl beside her, even some punched their own golden balls and chastised themselves for almost acting on impulse.

'It'll be better if she puts on a less revealing outfit...' Elsa starts looking and searching a clothing store, she spotted a large shop with a glass window, and said,

"Nero, let's go shopping for clothes, what do you think?

"

"Oh well. I'm fine with that too. By the way, these people are annoying!

" Nero turned and said aloud,

"Stop looking at me and go back to doing what must be done, don't waste my time looking at me and making me and my big sister uncomfortable!

"

"Yes...

" Like zombies, they heard her command and stopped paying attention to her.

"Umu, this is better. Wow, it was getting annoying.

" Nero smiled at Elsa:

"Isn't it?

"

"Yes, my little sister is the most powerful~

" Elsa didn't care about anything else, and hugged Nero and rubbed her head, spoiling her.

"Sister.

" Nero looked between her breasts and said teasingly,

"You're smothering me with your pair of big breasts again, by the way, how did they get that way? Do you think mine will also get as big as yours?

"

"I ate a lot, trained a lot, and slept a lot. This while I was crossing rivers and seas looking for you.

" She was being honest. Not because she wanted Nero to know how hard she worked for her, but because her life since she was 16 is all about going out and trying to find her little sister.

"Mm, I do that too. Aside from the worrying part, since there's no point in it, or maybe there is? Well, I just need to look in the mirror maybe? Mm, I don't understand, but my breasts aren't small, yes?

" Nero pulled away and cupped her breasts in front of Elsa.

For some reason, this made Elsa uneasy, she looked from side to side and sighed when she saw that no one was looking.