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

Stellaris Fantasia Online (SFO)—the most famous MMORPG in Japan. In this virtual world, players survive, gather resources, and fight to grow stronger.

The game's mechanics are brutal. You can kill other players, steal their loot, and dying means losing all your levels and items—except for the ones you purchase. But unlike the real world, this game has magic, runes, and limitless possibilities.

I, Haruki Mishizaki, better known as Harucchi in-game, am one of the top players. Alongside my partner Tria, we conquered territories, defeated guilds, and crushed hundreds of players who crossed us. Together, we climbed to the top 10 on the Japanese leaderboard.

But as they say, even the strongest duos aren't invincible.

For us, the cracks came from Tria's...

possessiveness.

"Haru-kun, let's play more... pleaseeee."

"Uhmm, Tria-san, it's already past midnight. Don't you have work tomorrow? I have school too..."

"Ehhh? Or are you just playing with another woman behind my back while I'm asleep?"

What the hell. Even through chat, her yandere vibes are suffocating.

"Then... hand me your account," she typed, followed by a smiling emoji.

"The f—?! Why would I do that?"

Oh no. I accidentally pressed Enter.

"Uh, no, sorry, Tria-san. I didn't mean to type that..."

"It's okay," she replied. "Then will you hand me your account?"

Her message included a pleading emoji.

Damn. This woman. She's exhausting... but I can't deny she's cute.

"Tria-san, we've only been playing together. We don't even know each other in real life. You don't even want to show your face on LINE."

"B-but selfies are embarrassing! Besides, I'm already 22... You might hate me because I'm older."

But I like older women...

As if I could say that.

"Tria-san, sharing accounts is against the rules. Besides, we're not even dating. We only married in-game for the buffs, remember?"

"You're just making excuses! You do have another girl, don't you?!"

"I DON'T HAVE ANY GIRL!"

I snapped. She sent a string of crying emojis in response.

"Tria-san," I typed, pausing to gather my thoughts.

"I know we've played together for six months, but honestly, playing with you isn't fun anymore."

"E-eh? Why?"

"Because you're way too possessive. You don't let me play with my friends or even my little sister."

"B-but what if they're just girls pretending to be your friends or your sister?!"

I couldn't take it anymore

"Let's end this partnership. You can keep all the loot in your inventory."

"I knew it! You're dumping me because of another girl! Just admit it!"

"It's because you're paranoid, Tria-san!"

Before she could reply, I unfollowed her in the game. Now she couldn't contact me or play with me anymore.

It stung a little to cut her off. But her behavior was suffocating.

Maybe I'd feel better after some sleep...

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The Next Morning

"Onii-chan..."

"Haruki onii-chan, wake up! You're going to be late for school!"

Ah, what a blessing to be woken up by my adorable little sister.

"Did you stay up late again, onii-chan? You've been playing Stellaris Fantasia too much."

I patted her head. "Don't worry. Starting today, onii-chan won't stay up late anymore."

"Really?"

The reason I stayed up late is already out of my life...

"Then, will you play the game with me after school?"

"Yeah, sure. After school."

"Yatta!"

Finally, I'd be able to play with her without having to worry about Tria-san.

While taking a bath, my thoughts wandered to Tria-san.

No, I wasn't thinking anything weird.

Sigh... Maybe unfollowing her was too harsh. I hadn't blocked her on LINE, though.

I checked my phone and noticed a ton of missed calls from her.

But I didn't have time to deal with that. School was starting soon.

On my way to school, I ran into Shino Miyabi, my childhood friend.

"Hey, Haru! Stayed up late again? I saw you online last night," she said.

"Yeah..."

"Why the long face? Did you finally realize you can't bang your in-game wife?"

The nerve of this girl...

"Well, I unfollowed her," I said.

Her eyes widened. "EHHH?! WHO GOT CUCKED BY WHO?!"

"Oi, are you even a girl?

"Yeah, why? Wanna touch my boobs?"

"No thanks. And nothing like cucking

happened."

"Oh? Then what did happen?"

I told her everything. About Tria-san, her possessiveness, and how I couldn't even play with friends because of her paranoia.

"Haruki... why'd you abandon Tria-san? I thought you were into yandere onee-sans?"

"Who told you that?!"

"Your search history?"

After walking for a bit...

We finally arrived at Yokohama Public High School

Me and Shino goes here because it's near on where we live... We are both second years, and going on the same class too-- The class B

Our school is infamous for Class B, also known as the "Hell Class."

As for why, there's some reason for that....

"Haruki, Shiori-sensei wants to see you. She's in a bad mood, so try not to make it worse," said Shiki, the student council secretary.

Shino laughed. "Haru, you're screwed."

She wasn't wrong. Shiori-sensei, our homeroom teacher, was terrifying.

Her mood swings were extreme, and she assigned us an insane amount of work.

Despite her looks—boys avoided her like the plague.

But can't deny that she's a hottie

"Uhmm, Shiori-sensei... you called me?"

Eh? She was crying?

"Sensei... Are you okay?"

She quickly wiped her tears and glared at me. "Huh? You dare intrude on my personal

matters? Have you finished your assignments?"

"Well, uh, sorry, Sensei. I forgo—"

"Oh, you forgot? Were you too busy playing games last night? Hand me your phone, Haruki. I'm confiscating it until after class."

"Eh? But—"

"No buts! Or do you want me to call your mother?"

Reluctantly, I handed her my phone.

But then it hit me. I hadn't deleted Tria-san's notifications...

"Uh, Sensei, can I delete something first?"

"What? Your dirty stuff? Watching that already? Do you want me to punish you harder?"

"No! Wait, don't open my—"

It was too late. She saw it.

Her face turned red.

She stuttered for a bit, as if she saw something like a ghost.

Is my notifications has something like that?

"Uh, Haruki... Do you play Stellaris Fantasia Online?"

From her furious tone earlier, her voice suddenly became soft.

Her mood swings is really something

"Uh, yeah, why?"

"Is your in-game name... Harucchi?"

"Eh?"