Only ours yandere twins

Happy to hectic

You woke up in a bed but not a hospital bed, no a bed belonging to the twins.
"What happened," you said involuntarily
"Your brother burned down our school," Kai said
"I'm alive where's Karma-kun," you asked and his face twisted in disappointment
"I'm here my little one," Karma said you went to get up and realized you were chained to the bed.
"What the heck," you yelled staring at the chains
"You belong to us and we can't allow you to leave," Kai said, the aura in the room became dark and the temperature dropped so quick you got goosebumps.
"Don't look like that little sis," Karma looked absolutely and utterly insane.
"First we must take care of your brother," Kai said and Karma's demeanor changed Kai went to stab him with a knife but he missed.
"You're to s-," blood sputtered out of Karma's mouth as his body fell to the ground to reveal a smirking Nai.
You looked in horror at the sadistic smile on their faces.
"Don't worry," they came to either side of the bed and gently touched your cheek.
"You're only ours," they whispered in your ear
You lifted you hands and slapped both of them across the face.
"You....killed my brother," you said "you killed a lot of people"
The twins laughed and walked away before coming back with a box.
"Open it there's a gift inside," you slowly opened the lid to see your mothers head in the box. Her face held an expression of pure horror but the only thing missing was her eyes. You felt really bad and threw up in the box.
"Gomen okaasan," you whispered pushing the box away
"She doesn't look like she feels well Nai," Kai said looking worried
"Let's inject her with this," he pulled out a syringe and came closer. Before you could react he injected you with the liquid and you began to feel drowsy.
"Sweet dreams my lovely little angel," the twins whispered

The next morning you woke up in the same room. Nai and Kai smirked at you.
"Get the heck away from me," you yelled and their faces contorted into mischief.
"You're ours," Kai said grabbing your chin and forcing you to look at him
"Go to he-"
"If you say one more insult none of your friends or family will see tomorrow's day of light," Nai said and you snorted
"They won't see it as long as scum like you live on this earth," Nai growled but smirked and dragged something out the bathroom.
"What," you saw Sana and Asura both tied up and squirming. Nai kicked them and they stood still.
"Now you wouldn't want us to hurt these two would you," you shook your head they don't deserve this but neither do you.
"Then be a good girl you love us right," you forced yourself to nod and they smiled
"Now give us each a kiss," you gave each a peck on the cheek and they gave a look of unsatisfactory
"This will do for now....but since you only love us you don't need these two anymore," Kai smiled taking a knife out his pocket and walking over to the girls.
"Please Don't," you yelled but they only tsked and you watched as your friends were brutally murdered. It was absolutely horrifying.
"Now it's time to eat," Kai held up a bowl of soup and you shook your head.
"Fine we will come back when you decide to cooperate," with that they dragged the bodies out and left you in complete darkness.