Requested by Http-Perfectionist

The time... has finally came.

Yes, my dear readers. Another REAL yandere oneshot... is about to happen.

I was honestly waiting for this oneshot's turn because it seems pretty interesting.

I don't have a clue how it will turn out. I will try to make Masato a little bit like Ayano (Yandere Simulator), just I'll try to make him less crazy. XD Yeah, you will see.

Warning: it will be very OOC. XD But I will try to keep him in character.

!!!WARNING!!!

VIOLENCE, BLOOD, UNHEALTHY OBSESSION. DON'T LIKE, DON'T READ!

Masato's POV (this will be hard, wish me luck.)

I simply can't understand why I'm being treated like a mother.

I breathed out a sigh as I stepped out of the store, with a paper bag in hand. My bandmates would like me to cook - again - so I had no choice but to take a visit in the shop, buying a few materials - such as cheese, tomato sauce and meat - and kitchen tools too - such as forks, spoons, knives, or a baking sheet.

((A/N: Don't ask what is Masa making, because I don't have a clue.))

They need to learn to take care of themselves. I'm getting tired of worrying instead of them too--

I widened my eyes as my eyes suddenly glued to one person.

.... S-She... What would she be doing here...?

I watched [F/N] from a distance. My heart started beating rapidly as I felt my face grow warm. She was the most beautiful girl in the academy.... who am I kidding, on this planet. And she was kind, and sweet, and literally perfect.

..... Well, I really am deeply in love with her... Too bad she doesn't even know of my existence.

I frowned, watching her turn on a corner. Almost immediately - just like every time I see her -, I felt the urge to follow her. And, just like every time, I did.
Not that I would let her see me though. That would be embarassing...

... I... must sound like an insane person. What this girl has done to me is quite interesting.

As I quietly followed her down the street with the paper bag still in hand, I saw her turn in an alley. Then seconds later, I heard a scream which was muffled almost immediately. My eyes widened.

...Screw the sneaking... Someone is about to hurt [F/N]!!

I sprinted towards the alley.

".... N-Nagito? What are you doing here!? I thought I told you to leave me alone!!" I heard her voice snap.
((A/N: No, DR persons, it isn't the Nagito you think of. I just needed a random name because our requester asked me to not kill off anyone out of the character cast.))
"Shhh, no need to be so loud, babe~.... I want what I want and you can't take that away from me. Or you want me to get rid of your pretty little neck?"
"... N-No, we've already talked about this..."

I fastened my steps. I saw the most disgusting sight.... A man in black clothing, pinning [F/N] to a wall, with a small pocket knife pressed to her neck. With full speed, I jumped in between [F/N] and the guy in black.
"Get away from her." I said. I couldn't recognise my own voice - it has never came out in such a harsh, dark way before. But I didn't mind it at that moment.
"Oh? Who is this guy? Is he your bodyguard~? Nah, he is too slim for that."
"M-Masato-kun...?" I heard her whisper, making me widen my eyes the slightest bit.

She knows my name...?

I shook my head. "[F/N]... run." I whispered to her gently, and for a moment she widened her eyes the exact same way as I did before.
"B-But--"
"Run!" I snapped as I saw the man in front of me take out a baseball bat, making her nod with obvious guilt in her eyes, and ran away. The guy was about to run after her, but I grabbed his arm tightly and surprisingly harshly, holding him back.
"Okay, dude... You want fight, you get fight! But let me tell you that you just signed your death wish." he grinned, snatching his arm out of my grasp and aiming with his baseball bat at me. I quickly dodged the hit. My heart was beating out of my chest.

This is a life or death situation.... I... I need to think straight...!

But I couldn't. The picture of the man pinning [F/N]... my [F/N]... to the wall kept reappearing in my brain. I felt my breaths grow heavy as my heart started beating faster. I suddenly felt the urge to...

It isn't appropriate to....

...

I want to hurt him.......... Stab him...... Until... he isn't moving...

I gritted my teeth and clentched my fists as I felt my back hit a wall. My eyes started to darken. I don't know why, but my mind started screaming kill.
As I sat on the ground against the wall, the man in front of me raised his baseball bat to finish it for good.

I didn't think.
The paper bag has fell on the floor when I ran, spilling out everything.
A knife happened to fall beside me.

I looked at the knife, then at the guy. Then, as my eyes darkened for good, I let out a horrible, some sort of battle cry, grabbing the knife and stabbing it in his chest, to where his heart was.
Then I pulled it out, and I repeated the move.
The man fell to the ground, and I continued desperately and crazily. Blood splattered all over my clothing. I continued even after he was long unconcious.

I only realized after minutes what I was doing. My breaths were heavy, I was sweating. Everything was covered in red around me and the man's corpse. The knife was still in the man's chest.
I looked down in front of myself.

I killed a human.

It didn't seem right. I completed a deadly sin, a sin that one has to suffer all of their life for, and yet...

The guilt I should've felt wasn't present.

In fact... I felt relieved. Proud. This is what I did.
I found it beautiful.

... I don't just sound like an insane person. I... am. An insane person. Huh...
But at least.... [F/N] doesn't have to worry about this beast now... Yes, that's right, because I took care of him. Now she should be proud of me. And she will be mine. No one can get in our way...

I realized after a few seconds that I was grinning.

That was the day... I finally lost control of my mind.

~■♡■~

The next day, I walked down the dorms with my usual expression. I felt calm. I felt clean. Even though I did something horrible, I've never felt better in my whole life.
"Masato-kun!! Masato-kun!!"
I widened my eyes and froze. I instantly could feel my face warming up when I heard the voice. The one voice that was music to my ears.
"Finally I... found you!" [F/N] ran beside me with the brightest, most beautiful smile, then leaning on her knees and trying to catch her breath. "Good... morning, Masato-kun..."
"... A-Ah.... [F/N]-san, g-good morning." I stuttered out.
"I... wanted to thank you!" she straightened up and looked at me. "For saving me yesterday! What you've done is really heroic!"

A picture of the man's corpse flashed in front of my eyes again. Then, the picture of me cleaning every evidence, or putting the knife in my bag, thinking it might be... useful for later.

Heroic... I am the hero who simply illuminates criminals of love. That's not a sin, right?

"T-Thank you... It was... nothing, really. I couldn't let that person hurt you..." I smiled at her. She looked away and blushed.

Adorable...

"... You didn't get yourself hurt, right? W-What did he say? Will he leave me alone?" she asked with hope in her eyes.
"... Well... let's just say... you won't have to worry about him again." I said simply, looking into her eyes darkly.
"Great!" she smiled for a moment, but then froze. "... Wait... what do you mean...?"
"... I took care of him." I closed my eyes calmly.
"..." she blinked at me then smiled awkwardly. "... You... didn't... that's not possible, you are so polite.... You didn't right?"

I felt myself smirk.
My crazy side was showing... But I didn't care.
"... M-Masato? You suddenly look weird...!" she stuttered. She grew as pale as a ghost. "Please tell me you didn't--!"
I pressed my lips against hers forcefully and roughly, making her fall silent.

After I broke the kiss, I looked into her eyes seductively, letting out a deep chuckle.

"It will stay our little secret... okay...?"

~■♡■~

Welp, he really did turn out like Ayano.
Oh my god. Poor melon bread boy... what have I done.

WHY DON'T I FEEL GUILT?

MY GOD. I'M TURNING INTO HIM.

JK JK. Hope you enjoyed!