Rumi Pov.

''So, onii-chan, how many days will I be under Yumiko's care?'' We are in the month of August, so it is the summer holiday. And to my surprise, my brother was going to leave, leaving me in Yumiko's care.

''Monday morning I'll be picking you up, so don't worry about it.''

''I don't know how our parents gave you permission to go to a camp for 3 days.'' Our parents were currently away, so I would be staying alone.

''My power of convincing is far superior.'' He said this with a smug tone. ''Of course, the condition was that you shouldn't stay alone.''

''And that's where Yumiko-san comes in, but aren't you taking advantage of his kindness?''

''It's not as I'm forcing her or anything like that. I asked her if she could take care of her for 3 days, and after she confirmed it with her parents, she told me that there was no problem with it, even she was happy to have your company.''

''And I also agree to take care of Kuro?'' I pointed at Kuro who was on top of my brother's head.

Kuro hates being transported in a cat bag, but for some strange reason, Kuro feels comfortable being on my brother's head. Also, since Kuro won't see him for several days, onii-chan let him go on his head instead of him walking with us.

Kuro is quite independent.

''Nya.''

As if Kuro knew we were talking about him, he made himself a present. Sometimes I think that this very perceptive cat.

''Yumiko likes Kuro, so I accept it without any problem.''

I can't deny that every time Yumiko comes, Kuro is the first to come to greet her.

"Then onii-chan, what is your camp about?" He had only told me that he was going to go to a camp, but it was strange since he doesn't usually have the initiative to go on his own, so it is likely that someone invited him although my brother's circle of friends is very small.

''You could say it's a military camp.''

''Military?''

''It's a long explanation, but in short; A friend asked me if I could accompany him, and, by the way, I guess I can take the opportunity to train.'' He said with an energetic tone.

"Although you don't mind abandoning your little sister for it, do you?" I said with a sarcastic tone.

Ever since I can remember, my brother has paid a lot of attention to this, as if he was trying to make his mind distract, as if he wanted at all costs to avoid thinking about something.

''Come on Rumi, don't be cruel to your beloved onii-chan."

''Siscon.'' It's fun to joke with him although I know he loves me too much, to the point of getting hurt just to help me.

''Hai, hai, whatever you say, my pretty inmouto.''

With his free hand, I stroke my head. Not that I disliked this, but I'm not a little girl anymore.

''When are you going to stop treating me like a child?'' I took his hand off my head.

''When you stop being it.'' But in the same way he kept doing it.

While we were at this, we had already reached Yumiko's house.

Just by looking at it from the outside, I could tell that Yumiko's parents were rich, since her house was bigger than ours.

After my brother rang the doorbell, Yumiko appeared a few seconds later.

''Raiden, Rumi, it's nice to see you.'' After spending a lot of time together, she calls me by my first name just like my brother.

"Nya." Kuro meowed indicating that he was also present.

''Don't think I'll forget about you, Kuro-kun.''

Being recognized, Kuro jumped into Yumiko's arms, but not before using my brother's head as his jumping platform, with the result that onii-chan's head was pushed to the opposite side, which was quite funny.

''You're so cute, Kuro-kun.''

''Nya.''

''When I return, I will take care of punishing you.'' On my brother's forehead, there was Kuro's footprint. I guess Kuro left him a gift.

Once we entered, we left my luggage and Kuro's things in the living room.

Kuro seemed to be excited since once we were inside, he went to explore disappearing from my sight.

''Thank you again for taking care of Rumi, Yumiko.''

''Don't worry about it, Raiden.''

During all the time that I have been able to see how these two interact, I realized that they are quite compatible.

"Then, Rumi, see you on Monday." My brother's words brought me out of my thoughts.

''Good luck in whatever you're going to do in your camp.'' My brother is very skilled in that area, so I don't know why he had to go to that kind of camp.

''You can be more honest, you know?'' He put his hand on my head, although I let him do it since I wouldn't see him for a few days.

Saying that, my brother said goodbye and left Yumiko's house.

"I guess it's just you and me, Rumi.''

"I will be in your care." I bowed along with my words.

''Come on Rumi, you don't have to be so formal.''

''My brother taught me that I should be respectful towards my elders although only with those who give me equal treatment, the others can go to hell.'' Because I should treat as an equal those people who do not show even a hint of respect towards me? That was what onii-chan told me.

''I guess that's something Raiden would say.'' Yumiko looked happy as she said this.

''Then Rumi, we are going to leave your things in my room.''

''Okay.''

Since I would only be staying for 3 days, I packed what I needed; a few changes of clothes, a few books, and my family-sized cuddly teddy pan-san. Only what is necessary.

We went up to the second floor where Yumiko's room was, her room was large, there were several pieces of furniture besides her desk, its decoration was something expected of a girl her age. Although the most remarkable thing was the photos that she had on her desk.

While I was looking at the photos, she quickly put one of them away.

All people have things that they do not want to teach anyone. Although from what I could see, I'd say it was a framed photo. Maybe one where she was a girl?

"By the way Rumi, you don't have any problem if we sleep together, right?"

''No problem. Besides, you already do a lot by having me under your care.''

Once we put my clothes away in her closet, Yumiko realized that there was still one suitcase left.

''By the way, Rumi, what do you have in the big suitcase?''

''Just my pan-san teddy.''

I opened the suitcase and took out my AAA-size stuffed animal of Pan-san.

"That's too big a panda." Yumiko said in amazement.

''Onii-chan got it when we went to the amusement park.'' It was amazing how he managed to get this stuffed animal, since the challenge to do it was too difficult. Also, the manager was very reluctant to give it to him.

''Now that you mention it, I have something too'' Yumiko went to her closet, she was looking for something.

''Here it is.''

She pulled out a panda-shaped hood and quickly put it on.

''This was a gift from Raiden.'' She said this proudly.

''It suits you quite well.'' I didn't think my brother would give something like that to Yumiko. It's not that I'm jealous that Onii-chan is also giving gifts from Pan-san to Yumiko.

"It's true, I recently bought some Pan-san movies since I wanted to know more about him. Do you want to see them?"

''Of course, I do!'' I couldn't help but respond excitedly.

''I never thought a panda could fight.''

''It's the incredible thing about Pan-san, he won't hesitate to fight to defend his bamboo.''

We spent the afternoon watching Pan-san's trilogy.

''It was quite entertaining.''

''I didn't think you would like Pan-san.'' I said with a teasing tone.

''I think it was just a matter of time.''

It's strange, Yumiko has never liked pan-san. The first time she came into my room, she didn't like the stuffed animals, but now she seems to like it.

''Is there any particular reason? Maybe a certain gift from someone?'' She started to look away.

Just as I suspected, it was my brother's gift that changed Yumiko's mind.

''I only realized that Pan-san was cute.''

Yumiko likes my brother, it was something that I suspected, but with this I could confirm it.

''Tsundere.''

''W-why do you say that?!'' She answered a little nervously.

''Who knows.''

''Come on, Rumi, don't be like that''. Yumiko looked like a child insisting on it.

''Don't worry, I'm sure you have a chance.'' My brother doesn't have many friends, so if a cute girl like Yumiko were to confess to him, I'm sure he'd gladly accept it, after all, I doubt he'd get another chance like that.

"Rumi, what do you mean by it!"

''You have my support.'' I put up my thumb as a symbol of it.

''Rumiiiiii!''

Yumiko's bathroom was large, plus it had a large bathtub.

''Your hair is beautiful.''

Currently, Yumiko was washing my hair, logically we were taking a bath.

I consider Yumiko familiar enough to be able to do something like that.

My brother always told me that I should distrust people, they are selfish beings who will always go for their ideals, so they will not hesitate to use people for it. Also, if my brother trusts her, I can too.

''Rumi, you have friends at school, right?''

''Yes.'' Do not hesitate to answer, it was thanks to my brother's advice that I was able to make friends with several girls.

"How lucky." Her words were melancholy for some reason.

"Didn't you have friends in elementary school?" It seemed strange to me, since someone like Yumiko must be quite popular.

''You could say.'' She sighed. ''I was simply the girl from the errands, so I guess they never considered me her friend.'' Although her tone was melancholy, her expression quickly changed. ''But now I have several friends, so I don't regret what I had to go through to meet them. I also feel that if it hadn't been that way, I wouldn't have met Raiden.''

My brother didn't give too many details about his friendship with Yumiko, but I can tell from Yumiko's words, that he had a big impact on her.

''You love my brother very much, don't you?''

''Raiden was my first friend, so I love him very much.'' Unlike other times when she was nervous when talking about him, at this moment she was calm, as if nostalgia had made her remember some important moment of hers.

"B-but I only want him as a friend!" It seems that she realized what she said, and now she was nervous to speak.

If my brother makes her cry, I will never forgive him. After all, he is lucky that a girl as Yumiko fell in love with him, so I hope he doesn't waste this opportunity, they would also make a good couple.

"Hai, hai, by the way, now it's my turn, so sit down." Yumiko had helped me wash my hair and back, so I would return the favor.

''I guess I'll accept the offer.''

We change places. Yumiko's hair is quite silky, plus her skin was smooth and soft to the touch.

I could say that Yumiko was the most beautiful girl I've ever met, although the other girl that onii-chan brought home is not far behind. If I remember correctly, her name was Kawasaki.

Come to think of it, is my brother some kind of playboy? One other time I saw a photo on his cell phone where he was surrounded by 4 girls, and among them was Yumiko and Kawasaki. I guess I have to scold him.

When we once finished washing ourselves, we decided to go to the bathtub, and since it was big, there was no problem that we entered it at the same time.

Now that I see Yumiko from the front, I can tell that her breasts are big. Of course, it is one thing to see them covered, and another to see them naked.

"Yumiko-san, how do you make your breasts so big?" Looking at my own chest, I could tell that I was nothing compared to her.

She looked down at her breasts. ''I don't do anything in particular. Besides, it must be genetics.''

So I just have to wait because if it's genetics, it's only a matter of time.

''You should not worry about the size of your breasts since you are just a girl. Of course, it would be different if you were 17 and your breasts were small, in that case it would already be a hopeless case.'' Yumiko said with an amused tone.

I would feel sorry if my relatives had good genetics while I didn't get anything from them. Though I doubt that's the case for me.

''By the way, Rumi, can I ask you a question.''

''Sure.'' Her answer had put me in a good mood.

''Do you know if your brother has any preference about the size?'' She said somewhat embarrassed, or was it because of the temperature of the water?

I never discovered any kinky magazines in my brother's room, so I couldn't tell what kind of taste he has. But if I think about the girls, he brought home, there was only one answer.

''I guess she likes big ones.'' Since both Yumiko and Kawasaki have big breasts.

Yumiko seemed happy to hear my answer since I could see that she made some movements with her hands.

She definitely has a crush on my brother.

Yumiko had cooked dinner, and although it wasn't at my brother's cooking level, it was quite nice.

Once dinner was over, I helped her wash the dishes, after all, since she cooked it, I couldn't just let her do everything.

When we finished doing everything, we went to the sofa to watch television.

Yumiko's parents, just like mine, usually come very late.

From the conversation we had over dinner, I know she wasn't used to being alone, she had her grandmother, but sadly she passed away, and at the worst moment was where my brother happened to appear before Yumiko.

Just listening to how things happen, I can imagine some kind of predestining encounter, as if the whole world had conspired. But this is just my speculation, there is no way something like this was meant to happen, so it can only be chalked up to chance.

''Nya.'' Kuro meowed for our attention. Kuro is a very pampered cat. My brother and mother took care of giving him too much pampering.

''Come here, Kuro-kun.'' Kuro jumped onto Yumiko's lap, where she was petting him. I guess Yumiko spoils him too much too. It's not that I don't like Kuro, but he sometimes behaves in a rather arrogant way, as if kuro understood us very well.

''By the way, Rumi, where did you buy Kuro?'' Yumiko asked as she petted our cat.

''More than buying it, you could say that we rescued it.''

"Nya!" Kuro was excited to hear how we got it.

''I guess I can tell. 2 years ago during Christmas, onii-chan and I were on our way back from doing some shopping, and while we were walking over a bridge we heard a cat meowing, looking towards the river, I realized that a small kitten was being swept away by the water.'' Kuro was just a malnourished stray cat.

''Before I could say anything to my brother, he jumped off the bridge. At the time, this surprised me since we were several meters high, and since it was winter, the water must have been frozen, but this did not stop him.''

Even now I don't understand why he did it, and even if I tried to ask his, onii-chan always avoided answering. As if he felt that he should help Kuro, as if guilt motivated him to do so.

''Since I know Raiden, I'm sure it's something he would do.'' I nodded at her words.

''To our bad luck, once my brother rescued Kuro, we couldn't take him to any vet since they were all closed. So we took him to our house where we would take care of him until Kuro recovered.''

''Nya.'' Kuro seemed happy about this.

"And Raiden wasn't hurt by what he did?" Yumiko asked with some concern.

''The next day he was sick since he had preferred to give priority to Kuro than to himself.'' Onii-chan always does that, he prefers to give priority to people close to him than to his person.

''For good luck, our parents had that day off, so they were able to take care of him. Onii-chan is not someone who gets sick easily, but the times he does get sick, he has a very bad time. Onii-chan is without energy and he often talks in his sleep due to fever."

''That's worrying''. I can understand Yumiko, although it's not a common thing for this to happen.

''Since I can remember, he alone has been sick alone 3 times, so you don't have to worry about it.''

''Nya!'' Kuro interrupted us, as if Kuro wanted Yumiko to keep stroking him.

''You should learn not to interrupt conversations.'' I held Kuro and put him on my lap.

''After Kuro recovered, my parents were not opposed to the idea of keeping him, and that's how we got Kuro.''

''Nya!'' I started petting Kuro, definitely knows when he's talked about.

"I would not have imagined that Kuro went through so much.''

''It was quite strange so to speak, but in the end, Kuro is a member of our family''

''Nya!''

''And Kuro knows it.''

After our conversation, we continued to watch television for a few more hours.

''I think it's time to go to sleep.'' Yumiko said.

"But it's still early."

''Rumi, it's already 11 o'clock. Besides, Raiden left me in your care.''

"OK." I answered reluctantly since, I wasn't sleepy yet.

We went to Yumiko's room, and I put on my pajamas. In addition to getting my pan-san, Kuro got ready too and went to the bottom of the bed.

Once we were both in bed, I closed my eyes to try to fall asleep.

Minutes passed, and I couldn't sleep.

Due to the boredom, I felt, I couldn't help but wonder what my brother was doing.

As I thought about it, a noise made me raise off the bed.

It was the sound of thunder.

"Rumi, are you alright?"

''I'm fine, why do you ask?'' I tried to keep my voice calm.

''It's just that you had a shock with the recent thunder. Also, there seems to be a storm, although the morning forecast did not indicate anything.''

Damn forecasters, they only have one job, and they still do not do it well.

''You don't have … Kya!''

There was another thunder, so I couldn't help but scream, I hugged my pan-san plush with all my might.

''Are you afraid of thunder?'' Yumiko asked with some uncertainty.

"Of course not, I'm not a little girl!"

I was never afraid of thunder, but after the incident that happened in the forest, for some reason it terrifies me.

Whenever there are storms, I usually sleep next to my brother since, I feel safe by his side.

I could feel Yumiko's arms hugging me.

''Being afraid of something is natural, so you don't have to be ashamed of it.'' She said with a confident tone.

Her words made me feel calm. Besides, having someone close was comforting.

''Thank you for this, Yumiko-san.'' My sense of security was not the same as with my brother, but that did not prevent me from feeling comfortable with Yumiko.

''We are friends, and friends support each other. Also, right now it's as if you're my little sister." Yumiko said with a cheerful tone.

Little by little, my mind calmed down, and sleep invaded my mind.

"Rumi-chan, it's nice to meet you." She greeted me happily.

''Thank you for having me.'' I bowed.

"Don't worry about it, it's also nice to have Raiden-kun's little sister." Her tone was quite simple and cheerful. Emiko Miura was quite kind.

When I woke up, I went to wash my face and then change my clothes since, I didn't want to be in my pajamas all day. When I was ready, I went down to the living room since Yumiko had gotten up before me. But to my surprise, it wasn't her I ran into in the kitchen, it was her mother.

She had brown hair, unlike Yumiko's, her eyes were brown in color, and right now she was wearing a pink apron.

She quickly recognized me and greeted me, so by inertia I didn't hesitate to thank her for receiving me these days.

''And Yumiko-san? I don't see her anywhere.'''

''I was missing some ingredients for breakfast, so I sent her to buy them at the store, although she should be back soon.''

I guess I could help with something until Yumiko comes back.

I went to a shelf and took out the dishes to set the table.

''Rumi-chan, you don't need to help me, you're our guest.''

''I would feel uncomfortable if I just observed.''

Once I finished putting the dishes on the table, I felt myself being hugged.

''You are so cute and attentive. as I would like to have a little daughter, since Yumiko is not so attentive to me.'' She said this last with some regret.

"You're too affectionate, that's why I don't like being pampered all the time." Yumiko said with disinterest. She had arrived at this time.

''Come on, Yumi, don't be like that with your mother.'' She quickly approached Yumiko and started to hug her.

"Kaa-san!" Although Yumiko seemed a bit uncomfortable about this, I could see that she was happy to be hugged by her mother, the two of them get along so well.

Once everything was ready, we proceeded to breakfast.

"By the way, Rumi-chan, do you know if your brother has any love interests."

''Kaa-san!'' What, w-what are you asking?'' Yumiko had become flustered by her mother's question.

"It's just curiosity," She replied with a nonchalant tone.

I guess I should answer her question, although I'm not sure of my answer.

''My brother is not someone very social, so I am not sure about it. Last year he brought two girls to the house." They both fixed their attention on me. ''One is Yumiko-san and the other is Kawasaki-san.''

''Kawasaki?'' Emiko-san told her name with hesitation.

''She is my classmate of the Sobu High, she is also a friend of Raiden.'' Yumiko did not hesitate to answer, although her tone was monotonous.

''Is that so?'' Emiko-san said with a mischievous tone ''By the way, Rumi-chan, how did you meet Kawasaki-chan?'' She said this while giving Yumiko a few glances.

I'm not sure to tell about this, but since Yumiko and Kawasaki are close, I don't see why not.

But before I could speak, Yumiko did.

"Both are partners in a karate academy. That day some guys attacked Kawasaki, but Raiden helped her, although both ended up quite hurt, so they went to Raiden's house to treat their injuries, and as it was too late, they decided to spend the night at his house.'' This last was said with some disdain.

It seems that my brother told Yumiko what happened.

''That seems to me more like a story where a prince goes to the rescue of his beloved, don't you think the same Rumi-chan?''

"These two are just friends!" Yumiko exclaimed, somewhat annoyed.

''I'm just kidding, Yumi, you don't have to be angry.''

Yumiko just responded with a pout; she looks pretty cute that way.

''My brother is far from being something like a prince. After all, he is quite selfish with the people he considers close, but at the same time he is distant towards people who are not close to him, something that a prince shouldn't do.'' My brother is pretty weird in a good way.

''Rumi is right, Raiden is far from a prince.'' Yumiko said.

''In a certain point they are right, I can't imagine Raiden-kun in that way, although as a kind of a mercenary.''

"Mercenary?" I asked with some hesitation.

"You know, someone who does things for his own personal benefit, or at least I see it that way." Although Emiko-san had explained it, I couldn't relate those words to my brother. Or maybe she has realized something that I do not know?

"Kaa-san, Raiden is not that kind of person since he is kind and cares about his friends, so I don't think that everything he does is for his own personal gain."

''As I said, that was the first impression he gave me, of course I can be wrong.''

I think the same as Yumiko does, my brother is someone who cares about the people close to him.

I'm exhausted, after breakfast Emiko-san takes us to the mall where we spend the whole day.

Although first, I wanted to refuse, Emiko-san ended up convincing me, and if that wasn't enough, she also bought me some clothes.

This was the obligation of the parents, but she said that today I was like her little daughter, so I must let myself be pampered.

It was quite a tiring day, and from what Emiko-san said, tomorrow we would go to a club since they usually go out every Sunday.

When I see my brother, I will make sure to hit him.

''So, Rumi, what do you think of the club?''

''I've never been to one, but it's quite big.'' The family Miura were partners, so they could bring guests. Yumiko's father is a doctor, and her mother is a company manager.

There were different areas, both for swimming, playing tennis, soccer, basketball and even target shooting.

''Rumi wants to play tennis?'' Yumiko said.

''I have never played, but I can try.''

Yumiko is quite good, since after we practiced, a girl challenged her to play, and the match ended with Yumiko's total victory.

After that, we went to lunch. Yumiko's father asked me some questions about my brother, and I also learned that they had already met and had even given him approval to go out with Yumiko, but my brother seemed unaware of this. Will he be an idiot?

The rest of the afternoon was spent in the pool. The good thing was that my brother had taught me how to swim, so I had no problem with this.

The day itself was quite entertaining, even Kuro had fun since there was an area for pets.

I guess I should thank my brother for giving me the opportunity to have this experience.

''It was a pleasure having you for a few days, Rumi.''

''I should thank you for agreeing to take care of me.''

It was already Monday, so my brother shouldn't be long in coming for me.

''Nya.''

"You are also welcome whenever you want, Kuro-kun."

The bell rang indicating that my brother had already arrived.

''It must be Raiden.'' Yumiko went to open the door.

I grabbed my things and followed Yumiko to the door.

''Raiden, are you alright?'' Yumiko's tone sounded surprised.

My brother looked quite haggard, plus he looked exhausted as if he hadn't rested these days.

"I'm fine, only I could say I had a rather peculiar weekend." His tone showed that he was in a good mood. Though the state he was in said otherwise.

''If you say so.'' Though Yumiko didn't seem convinced by his words.

''By the way, Yumiko, I will compensate you for taking care of Rumi, you were a great help.''

''Don't worry. We're friends, right?" Yumiko was happy to say this.

"Then Rumi, let's go."

After saying goodbye to Yumiko, we left for our house.

"Then onii-chan, why are you so gaunt?"

''I can say that if you are going to be arrogant at something, you should make sure you are the best at it.''

"I don't get it." What was he trying to say?

"I didn't get it at first, but I managed to do it in the end." My brother was acting weird for some reason.

''You're weird.''

"I know." He said in a cheerful tone.

I guess my brother can be pretty weird sometimes.