Yandere and Menhera - Suddenly Having a Yandere Older Stepsister and a Menhera Younger Stepsister Makes Every Day Difficult - Chapter 1 - 3

Seiya-san looked into my eyes and said,

“I don’t know the hardships your mother has gone through, how she raised you without your father. And I don’t intend to find out. Trying to understand would be impolite. But that’s exactly why I say this: I assure you, I will not let your mother be unhappy. Not in the slightest.”

With a resolved tone, Seiya-san spoke with serious eyes, I found myself responding with an involuntary smile. Surprised by my smile, Seiya-san’s stern expression softened.

“Please take good care of my mother. Regarding the remarriage, that is.”

Indeed, Seiya-san’s words made me accept the remarriage, no, there was no choice but to accept. However, there were things that couldn’t be resolved just by Seiya-san or my mother’s decisions alone. I looked into Matsuri-san’s eyes and said,

“Is it possible for you to live with me, given I’m in middle school and about to enter my exam period. I’ll be stressed, and there might be times when I’m in a bad mood.”

As I said this, looking into Matsuri-san’s eyes, she smiled like an angel and said,

“I am excited at the prospect of living with someone as mature and thoughtful as you. I’m not sure about Ririka, though.”

“By the way, where is Ririka-chan today?”

“Ririka has gone to school. She’s not fond of formal atmospheres like this. But she did leave a message for me to tell you.”

Matsuri-san kept looking into my eyes as she spoke, encouraging me not to run from reality. I nodded silently, my heart racing with anticipation, only to receive a surprisingly straightforward reply.

“Her message was simply, ‘I’ve always wanted an onii-chan, so I’m all for it.'”

“Is that all?”

“Yes.”

Faced with such a simple answer, I hesitated, wondering if it was really okay. Then, my mother, stepfather, and Matsuri-san unanimously said,

“Don’t overthink it.”

With those words, I felt that things would work out. Thus, I promised to live with the two of them and arranged for a weekly allowance. After finalizing the formalities, my mother smiled in a way I had never seen before.

“Starting today, you’ll live with Seiya-san. ♡”

“Ah, yes.”

“Ririka-chan will be picked up by Matsuri-chan. Ryusuke, take your time to sort out your feelings.”

“Yeah, take care, Mom.”

“Of course. And Ryusuke, don’t hold back. And remember, Ryusuke, don’t hold back—keep pursuing judo with all your heart.”

“…Yeah.”

My mother said this and then got into the taxi with Seiya-san, heading to their new home to start their married life.

After seeing them off, I was left alone with Matsuri-san, and the house, the living room, and my own room were enveloped in a strange atmosphere. That’s when Matsuri-san suddenly grabbed my hand and said,

“I’m looking forward to our time together, Ryusuke-kun.”

“Ah, um, yes.”

After an awkward response, I abruptly released Matsuri-san’s hand and scampered to my room in a flurry. Upon opening the door, I inhaled the familiar scent of my judo uniform, seeking solace in its familiarity to steady my heart.

Due to participating in a sport that doesn’t have many girls in the club I attend, I’m not used to dealing with girls. And now, suddenly having a beautiful step-sister, I found myself getting nervous. Just then, there was a knock on my door.

“Ah, yes!”

“Um, I’d like to talk about something for the future.”

“Ah, I’m coming now!”

Determined to dispel my nervousness for the sake of our future, I mentally shifted gears and made my way to Matsuri-san.

I ushered Matsuri-san to the sofa and prepared tea before we sat face to face, embarking on our conversation with earnest expressions.

Next to Matsuri-san, there were several large bags.

“Uh, well, first of all, I’m Ryusuke.”

“I’m Matsuri. I’m three years older than you, Ryusuke-kun.”

“Um, are you in high school?”

“Yes, that’s right. You’re 15 this year, and I’ll be 18. I’m also in my exam year, planning to go to university.”

“Oh, is that so?”

“Yes. So, I was wondering if there’s somewhere I could store my clothes, underwear and such. It would be nice if there was.”

“Ah, in that case, you’re welcome to use the dresser my mom used.”

I showed Matsuri-san to my mother’s room, where she asked with a delighted smile, ‘May I use this room?’ I quietly nodded and then started to earnestly carry the large bags we had previously left there.

As I tried to help and touched the bag, our hands overlapped by accident, and Matsuri-san, perhaps startled, let go of the bag, causing a lot of clothes to spill out.

Of course I’m not allowed to touch it, there’s sexy underwear that would make any junior high school boy lustful…

I squeezed my eyes shut with such intensity, as though trying to blind myself, until Matsuri-san had finished picking everything up.

“Endure it. Myself. Just endure. Endure!”

I kept telling myself this and only opened my eyes when Matsuri-san announced, “All picked up.”

With an uncertain future ahead, unsure of what living with Matsuri-san and Ririka-chan would entail, evening fell amidst my growing anxieties.