I paid off the debt for the most beautiful sisters in the school, and then they barged into my house where I live alone. “Please go back home; you don’t need to repay the favor.” “No way.” “We don’t want to~☆”

After the introductions were over, Erika headed to the kitchen, exclaiming, “I’ll make dinner! I’ll make sure you don’t regret calling me!”

From my perspective, it was supposed to be a provisional arrangement to allow Karen to be with her sister, but it seemed that Erika would be truly in charge of cooking from now on.

Whether it was her skill or not, the food came out faster than Karen’s cooking. Considering the time it took, the menu was abundant, and the appearance was glamorous.

“Delicious!?”

“Heh heh~. Told you, right?”

It was quite tasty when I actually tried it.

Could a middle school student cook like this? It might be rude to say, but it was undoubtedly several levels above Karen’s cooking.

“I really can’t beat Erika’s cooking, can I?” Karen said, eating Erika’s food with a slightly complex expression but calmly. It must have been a taste she was used to, so she ate quite a bit, perhaps feeling a sense of comfort.

“It’s fine, right? I’ll be in charge of cooking, and my sister will be in charge of serving.”

“Serving? That word sounds suspicious in this context.”

“She’s a middle school student, so she probably doesn’t mean it that way.”

“Oh, but is that kind of service too much for my sister? If so, I’ll take care of that too, big brother? I’m confident in my style.”

“Erika! Don’t say weird things!”

…Is she serious?

How much does she understand about what she’s saying? I’m scared to even find out.

I might have brought a rather dangerous person into the house.

“No, don’t worry about it. Your cooking alone is enough. It’s seriously delicious.”

“Ahaha~. You say such nice things, big brother. It makes me want to serve you.”

“I told you not to do unnecessary things!”

“Sorry, my sister. Sorry.”

“You don’t have to apologize for every little thing!”

Geez. These sisters seem to have completely opposite personalities.

I wonder how they managed to live together as a pair, but living with three people seems to be a challenge for me. Well, I guess it’s okay if I don’t see either of them too much.

Erika, known as the Kamishiro sister, began living with us, and the life with the Kamishiro sisters officially started.

However, that doesn’t mean our lives have drastically changed.

Living with beautiful sisters might sound like a dream come true for a boy, but in reality, we are more distant than a couple living separately within the same house.

Well, I don’t know the lifestyle of a couple living separately within the house. My parents fought like hell and eventually broke up and scattered.

So, I was able to live without feeling the stress of the life changes I initially expected.

“Phew~”

When I entered my room, the cool air wrapped around my body.

On some days, the temperature drops so much that even the heat from the bath is quickly taken away. It would be boring to catch a cold, so maybe I should get into bed early.

By the way, the bath time is strictly divided, so there is no chance of accidentally meeting in the changing room or anything like that. For now, I’m the last one. Apparently, the homeowner has arranged it so that I can take my time. I don’t care about being the first in the bath, so I agreed.

“Huh?”

I suddenly noticed. The futon on the bed was unnaturally piled up.

Did I leave something on the bed?

As I thought that and pulled back the futon, my thoughts stopped.

“What?”

“Yoo-hoo. I’ve been waiting for you, big brother.”

Erika was in the futon. In her underwear.

“Wha, wha, wha, huh!?”

Eh, what’s this? Is it okay to look? Her skin is white, her legs are long, her waist is thin.

That’s not it!

“Um, that, that.”

“What, what?”

Erika sat up and looked at me with a grinning face.

This… girl…

“Why are you here!?”

I finally managed to say something and succeeded in looking away from her.

I was almost caught staring at her extremely attractive, or rather dangerous, body. Her underwear might be a little childish, but her style is so good that it doesn’t matter.

“Being in my underwear is like a trial of service?”

“What are you talking about?”

“Well, we’re like maids, right? So I thought this kind of service would be acceptable. Erika-chan was famous in the neighborhood for being a very beautiful person, but aren’t you happy?”

I’m happy.

No, that’s not it. Being beautiful is undoubtedly true, but that’s not the point.

“You idiot. We’re not maids but house helpers. What kind of service are you talking about, you bratty kid?”

“Eh~? A kid? But our ages aren’t that different, right?”

“Even so. There’s no job that requires you to break into someone’s room half-naked that I remember asking for.”

“Half-naked is~ a kind of trial service?”

“Ha? What are you saying?”

“Um, well, we’re like maids, right? So I thought this kind of service might be allowed. I’m famous for being a very beautiful person in the neighborhood, but aren’t you happy?”

“I’m happy, but that’s not the point! Get out of my room in that kind of outfit!”

“The service is a trial to see if you’re okay with it.”

“I’m not okay with it, and I don’t want to be okay with it!”

“Really? I like you, big brother. If you want, you can really try the service now. I’ll keep it a secret from my sister, and I won’t get angry. I have to thank big brother for all he’s done, right?”

This girl was really serious. Her offer was tempting, but I had to remember that I was living with both sisters.

“I’ll tell you one thing. People who easily trust others are just fooling themselves. You can’t see a person’s true nature just because you’ve put your body on the line a little.”

“I know. That’s why I’ll do my best until big brother can trust us.”

“Stupid, are you? It’s the other way around.”

“No matter what, I’ll make you trust me. I’ll expose you completely one day and trust you from the bottom of my heart.”

“Stop with the nonsense and go to sleep, you bratty kid!”

“Eh, but I’m not that much younger than you.”

“You’re still a kid. Now, go to sleep!”

“I’ll manage somehow. One day, I’ll expose everything about you, big brother, and show you that I trust you from the bottom of my heart!”

“Ugh, just do whatever you want!”

Why on earth do I have to be told by someone in their underwear that they’ll expose me completely?

Damn it, that Karen! She’s brought me such an outrageous little sister!