Psychopath Attacks (Yandere!Nanase Haruka x Reader ver.)

Being Haruka's girl isn't what [First Name] wanted at first. But somehow, Haruka managed to make her fell in love with him..

Perhaps,by the power of mackere- (SMACKEDDD/////)

Okay then, enough joking, return to the story xD

"[First Name]" One of her besties, [Best Friend's Name] called her.

"What's up?" [First Name] asked her.

"Y-you know.... I think Nanase-kun isn't the right person fo-" She wasn't able to continue. Because....

Nanase Haruka appeared behind [First Name]'s back.

"S-sorry [First Name]... I-I talk to you later,B-BYE!!" She ran away with tears on her face. It was clear enough that she was scared by Haruka's presence.

"What's wrong with her? She's been like that since we started dating.... Haru, do you have any idea?" [First Name] asked her beloved Haruka.

"Nope." Haruka said shortly. But in his mind, he immediately knew everything.

'My, my, she was terrified, indeed.... [First Name], won't you realize? She's my next prey... Ha! I won't let anyone take you away from me!! I'm the only ONE for you' Haruka's thoughts were full of evil plans. He planned to take everything from [First Name] in the first place...

Because.....

[Flashback - a Month Ago, not dating yet...]
- in Haruka's house -

"[First Name]-san, try this." Haruka puts a plate of freshly grilled mackerel on her plate.

"Ew, ew, seriously man, you gonna give me this thing?" [First Name] looked the dish with full of disgust.

"Eat that, it's good for you." Haruka said while eating his own mackerel.

"Really? Nanase-kun, I don't expect to eat this. GIMME SOMETHING ELSE!!" [First Name] started to annoy Haruka.

"W-Why?" Haruka's expression changed, still [First Name] didn't realize.

"H-huh? What did you say just now, Nanase-kun?" [First Name] asked,because she didn't hear clearly what Haruka had asked her.

"Why do you dislike mackerel...so...m...much?" Haruka asked with darkened expression.

"Because.. My besties said that if I ate mackerel, I'll be a fat girl, and besides, they said that mackerel's disgusting...."

[First Name]'s answer is now making Haruka angry psycho. He decides to take down everyone that made [First Name] hate mackerel. Even... By ending their LIVES.......

"[First Name]-san, who said that to you?" Haruka asked with a sadistic smile.

[First Name], however still didn't realize that Haruka's going to end her besties' lives.

"They're.........."

[End of Flashback]

'Mackerel's disgusting... IT'S.... NOT...THAT!!! I'LL CHANGE YOUR WAY TO THINK..... EVEN BY KILLING YOUR PRECIOUS FRIENDS!!!' Haruka started to smile, but of course, not a genuine one.

Apparently, [First Name], realised that Haruka just smiled. But didn't know that smile was not a good one.

"Hey.. Hey... Why's Mr.
No-emotion SMILING?? Did something great happened? TELL ME A.S.A.P. , 'kay?" [First Name]'s getting excited, not knowing what will happen to her friends and .... herself.....