It turns out that my Yandere playmate online is my Homeroom Teacher

Me and Shiori-san arrived at home.

As I opened the door, Mom was waiting in the living room with my little sister, Nishi.

My adorable little sister came running and hugged me tightly.

To be welcomed by such a cute face feels like a blessing.

"Mom, we're here..."

"Oh, hello, Haru. And this is your visitor?"

"Ah, yes. She's Shiori-san, one of my friends."

Shiori-san introduced herself to Mom and Nishi. She seemed a little nervous but composed.

"Onii-chan, is this woman the 'Tria-san' from SFO?"

As expected of my little sister, she's sharp.

Shiori-san replied with a warm smile, "Yes. How did you know?"

"Because I knew Tria-san was a grown-up woman, so I thought it might be you."

Shiori-san chuckled softly, then leaned down to whisper something to Nishi.

I couldn't hear their exchange, but Nishi's eyes widened before she responded, "No, he didn't have any before."

Shiori-san's face lit up with a satisfied smile. I had no idea what they talked about, but it was better not to ask.

"Mom, is dinner ready?" I interfered, trying to change the subject.

"Yes, it is. Shiori, please eat with us," Mom said warmly.

"O… okay," Shiori-san stammered, her cheeks flushing slightly.

Mom and Nishi went to the dinner table to set up the food while Shiori-san and I stayed in the living room. She looked around curiously but didn't say much.

"Haru-kun, where's your father?" she asked suddenly.

A painful question out of the blue, huh?

"He's not here... Why do you ask?"

"No reason. I was just curious," she said, hesitating.

I sighed. "Well, my father left us seven years ago when Nishi was just two years old. Back then, I was ten, and... well, it hurt not having him around."

"Did he cheat?"

"Yeah... something like that," I admitted, feeling the familiar sting of old memories. "Even now, remembering it makes me feel like crying."

Before I could say more, she leaned over and gently placed my head on her shoulder, stroking my hair. Her touch was soft and comforting.

"Don't worry, Haru-kun. I have my own problems too... but we have to keep moving forward. That's how life is," she said softly.

"So, you have your own struggles, Shiori-san?" I asked, looking up at her.

She nodded. "Well, I've always been an introvert with terrible social skills. Even in school, I didn't have any friends. My parents divorced when I was young, and neither of them wanted to take responsibility for me. I ended up living with my grandmother, but she passed away last year... So now, I'm completely alone."

Hearing her story made my heart ache. Despite her cheerful façade, she'd endured so much pain.

"Are you living alone now?"

"Yes, in a small apartment nearby. It's just a few streets away from your house," she said with a faint smile, though her eyes betrayed her loneliness.

I felt a strike of guilt. To think I had snapped at her for being annoying when she was just afraid of losing her only friend... I really was heartless.

At least I knew the reason why she became a Yandere

"Well, Shiori-san, we're friends now. You can visit us and have dinner here anytime you want," I said, trying to offer some comfort.

"Is that really okay? I don't want to bother you," she said hesitantly.

"Of course. Just make sure no students see you coming here," I joked.

She laughed lightly. "In that case, I'll bring groceries and cook for you sometimes."

Soon, Mom called us to eat dinner. Shiori-san sat beside me at the table.

While we ate, Mom turned to Shiori and said, "Ara, you're such a beauty, Shiori. Thank you for accompanying my son."

Shiori blushed and replied, "No, it's my pleasure."

Mom smiled. "Ara, what a sweet girl. Oh, and your work—based on your uniform, are you a teacher?"

"Ah, uh, yes. I'm also Haruki-kun's homeroom teacher," she admitted, fidgeting slightly.

Mom raised an eyebrow. "Is this okay with the school, Shiori-san? Won't you get into trouble for hanging out with a student?"

"We... well, I'll just count it as a house visit," Shiori said, trying to sound confident.

"Then, I'll ask… how is my son doing in school?"

Oh no. If Mom found out about my incomplete assignments, I'd be dead. I held my breath.

"Uh, Haruki-kun is a hardworking student. He participates actively in class, and he's even quite popular at school," Shiori said with a reassuring smile.

"You're amazing, Onii-chan!" Nishi chimed in, her eyes sparkling.

I let out a sigh of relief. Thank you, Shiori-san.

"It can't be helped. My son is a talented and sweet boy," Mom said proudly.

After dinner, Shiori insisted on helping me wash the dishes. I tried to stop her.

"Shiori-san, you're a guest. You should let me handle this," I said.

"No, that would be rude. I ate here for free, after all," she replied firmly.

Once we finished cleaning up, I invited her to my room to start playing. I checked the clock—it was only 7 PM. We could play until 10.

I also told Nishi to log into her SFO account since I'd promised to play with her this morning.

"Shiori-san, let's play until 10. After that, I'll walk you back to your apartment," I said.

"Eh? But I don't have a sleeping bag," she said, looking genuinely surprised.

"No, you're not sleeping here. I'll accompany you home," I clarified.

She looked disappointed. Was she planning to stay the night?

"By the way, Shiori-san, are you playing on your phone?" I asked.

"Yes. I accidentally broke my laptop last night after you unfollowed me, so I don't have any other options."

"Accidentally, huh..." I muttered.

I logged into my PC and immediately re-followed her. But then I noticed something troubling.

"Sigh... I'm sorry, Shiori-san, but our affinity is back to zero. We'll need to team up again for a long time before we can remarry in the game."

Her expression fell, so I quickly added, "If you want, we can pull all-nighters on weekends when we don't have school."

Her face lit up instantly. "Did you just invite me for a sleepover?"

Her ability to jump to conclusions was something else. But I couldn't bring myself to refuse her.

"Sigh... Okay. Let's have a sleepover on the weekends," I said reluctantly.

And just like that, I had invited a beautiful woman to spend the night at my house.