My beautiful sister-in-law who is only attached to me, and my childhood friend who just made her high school debut, barged into my house?

Shota left the bath, taking a little longer than usual, and looked out into the living room in search of some water to find Mio lying sloppily on the sofa.

Unlike before, she was wearing her usual sweatshirt with her hair tied back. Other than her hair colour, she looked exactly the same as before, and I felt a sense of relief, as if everything was back to normal.

Mio noticed me and held up her manga that she was reading.

“Ah, I borrowed this from Sho-chan’s room. I was curious about the sequel.”

“Hey, how about my privacy.”

“I don’t think I’d be bothered if people saw me now…I mean, maybe I would in some occasions like if I was seen with yesterday’s erotic doujinshi!”

“Like I was saying, it was just forced upon you by Kazuma.”

“So, what about this erotic novel?”

“…”

“Oh, so it’s really yours?”

“This bitch.”

“Fuhehehe!”

Getting caught in her trick, Shota fell for it beautifully.

Such is the usual exchanges between the two that became something akin to a daily routine.

The topic of conversation is a bit embarrassing, but it’s always pleasant to have someone you can talk to so casually.

“So, where do you keep the rest of your stash?”

“I’m not going to tell you idiot.”

“Oh, recently there’s a book that’s been popular amongst the girls that’s not only erotic but also very disturbing, called ‘The Returned Princess’s Wounded Body is Given to the Knights of Salvation.”

“…… Well, I’m interested.”

“Oh yeah, speaking of eroticism, Sho-chan’s hair over there is close to Eri-chan’s hair colour.”

“Hey!”

However, when I was reminded of what I had just tried to forget, I couldn’t help but blush. Mio smiling cheekily like that makes me think that I’ll never hear the end of this.

Shota let out a big sigh and scratched his head to rid himself of his shame.

He quickly looked around and confirmed that Erika wasn’t there, then asked her what he had been wondering about.

“So, what’s the reason?”

“Yeah?”

“You said you’re going to live in my house. I appreciate you making me food, but I don’t know what to say.”

“Is it a bit too much to just let me stay here without questioning it?”

“Yes.”

For Shota, he had no objections to living with Mio, even though he still not used to see Mio dressed so cutely.

However, Mio is still a neighbour. Even though they have known each other since childhood, it would be a bit much for her to live in the house of a person of the opposite sex at her age.

Mio, who had received Shota’s dubious gaze, rolled her vowels around in her mouth, wondering what to say. She then raised her eyebrows in a slightly troubled manner, looked away, and then bitterly opened her mouth.

“My father got remarried. And my brother lives alone in college, so, you know, ……?”

“Mio …….”

Shota also knew about Mio’s family circumstances to some extent. They knew each other since they were children after all.

He understood her painfully well and that’s why he couldn’t carelessly say anything.

“I see, then it can’t be helped.”

“I’m glad you understand. And I’m looking forward to working with you from now on.”

“Oh.”

After saying this, we shook hands with smiles on our faces.

The air was a little bit frayed.

Then, as if she could no longer endure it, Mio raised her voice as if to shake it off.

“I need some tissues for my room,” she said.

“Oh, I’ll go to the bathroom and get some for you.”

“Thanks.”

Saying that, Shota returned to the washroom.

He must have loosened up by talking to Mio, who was no different from before.

So the tragedy was bound to happen.

“…”

“Ah.”

Erika, who had just taken off her underwear, was on the opposite side of the door, which I opened without knocking.

She had a slender body with a slim waist that looked as if it would break if you hugged a little too hard, dazzlingly clear white skin without a single blemish, and modest but swollen breasts.

It’s the nakedness of a sister of the opposite sex which is different from me, a man, in every way. Normally hidden by clothing, it is something that should not be shown to strangers, much less to men.

Shota’s blood rushed to his head as he became aware of this, and he screamed faster than Erika could cover her breasts with her hands.

“U-uwaaaaaaaaaaah!”

“…”

Shota immediately turned on his heels and closed the door. He collapsed onto his back, plopping down on the floor, and covered his face with both hands.

He will have to apologize later. No, it may not just be a matter of apologizing. Erika, she is not his actual sister who shared the same blood.

Living with Erika and Mio means things like this can happen if he let his guard down even a little.

Shota groaned while thinking about the troubles he’d have to face and deal with in the future.