Tuesday, after school

Shin's POV

He waited patiently for the Basu sisters to show up on the rooftop. Once again, it crossed his mind that Info-chan was lying to him this whole time, and it was all a complex plan that was going to get him killed. Or worse... he quickly dismissed these thoughts. It wasn't the time for self-doubt. Info-chan was a reliable ally, and the deal they've made was good. He leaned against the wall and waited.

It was 4:05 PM when he saw Sakyu, with Inkyu a few steps after her, emerge from the south-east staircase. He gripped his katana tighter and started walking towards them. Strategically, it was more beneficial to target Inkyu first, since it would take Sakyu longer to notice that something was wrong. The other reason he wanted to kill the younger sister first was that she deserved a quicker end. It was Sakyu he wanted to suffer the most.

Warning! Mature content: bloodshed!

He walked up to Inkyu from the behind and before he even realized what he was doing, he was driving the katana deeper into the girl's back. He pierced her spine with a quick blow and he continued to deepen the wound until he saw the tip of the blade appear before her eyes. Inkyu didn't scream, but he heard her whimper when the edge of the hilt touched her back. It seemed almost too natural for him, like he'd done this many times before... what was wrong with him?

The moment he felt her blood on his hands, the whole world seemed to freeze around him. His eyes went wide when he realized... that he'd just killed her. It didn't matter if she was innocent or not to him at that moment – he spilled her blood. It was everywhere... on his hands, on the weapon... even his face. It was hot, almost burning against his skin. What had he done-? He was no better than the murderer herself... why was he even doing this? He WAS a murderer now. All of it because of one or two sick pranks... no. They deserved it. And he was doing the right thing. He wouldn't let them bully Oka anymore. He was protecting her from them. He had to be strong, and do something nobody managed to do... but he knew Oka's well-being came before his pathetic feelings. It wasn't important how he felt about killing the Basu sisters, it was right. He tightened his grip on the hilt even more.

His fingers brushed against her back for a moment, but he took a step back the moment he felt the warm fabric of her uniform. He katana slid out of her back, damaging even more of her flesh and resulting in a weak moan from the girl. He just stood there, frozen, incapable of moving a single muscle as he watched Inkyu's body fall to the floor, the pool of blood underneath her growing bigger and darker every second.

"Wha-?" Sakyu must'd heard her sister's lifeless body fall to the floor. The older girl turned around to see him standing over her most beloved's corpse. He strenthened his hold on the blood-soaked katana. She couldn't hurt him. Her end would be muchslower and more painful than her sister's.

"You-you killed my little sister!" she pointed towards him. Her face showed no fear. Only pure hatred and disgust. Her courage was admiriable, but this boldness only made him want to kill her more. He wouldn't hesitate this time. And he wouldn't show mercy. He was already a killer. One more person didn't matter to him at all. "You won't get away with this!"

Sakyu started to run towards him, and he took a few careful steps back. He was standing on the edge of the stairs. He watched in amusement as her emotions took over, completely preventing her from finding out what he was planning. Simply stabbing her would be... enjoyable, but way too simple.

Before she even realised what happened, he grabbed her by the wrist, just when she was close enough, and pushed her onto the stairs. It took all of his strenth, but it worked. He watched Sakyu fall down the stairs and hit the floor with a loud thud. He could swear he heard a crack of bones when she finally stopped, after bumping into the wall behind her.

He started to walk down the stairs, slowly, to finish her off. She didn't even try to run. She seemed to be hurt too badly to even stand. It would make everything so much easier for him.

She must'd heard his footsteps, as she held her knees closer to her chest in a protective manner. She seemed so tiny then, so innocent. But he knew she wasn't. Even the worst person could look vulnerable under some circumstances. She was breathing sharply, letting out uncontrolled sobs from time to time. Her whole body was shaking, either from fear, or crying. Whatever the reason, he didn't really care. When he stepped a bit closer, however, he heard her mutter something under her breath, desperate, but oh so weak.

"Don't hurt me..." he wasn't going to let her go. Not after everything she'd done. Her whisper only made him more anxious to end her.

As he reached the floor, and stopped next to her, her sobs stopped immidiately. For some time, nothing could be heard except from their breaths, sharp and uneven. Hers, because of the overwhelming pain and fear. His, because of his insanity.

Finally, after he was done staring at her and admiring his victory, he stepped even closer to her and pinned her to the wall with one of his hands, the other one still holding the weapon, ready to strike. She opened her bloodshot eyes, and looked at him for a while, trying her best to stay calm.

"Why-why are you doing this..?" she asked him at last. He once again had to admire her strenth throughtout all of this. Since he didn't want her to feel like her death was for no purpose, he was glad she asked him that. She should know why she had to die.

"You hurt Oka" and it was all that needed to be said. Sakyu stared at him in dibelief for a moment before her face changed from panic to anger. She looked him in the eye, with an amount of boldness that was surprising even for him.

"You-!" she spat out, but she didn't manage to finish whatever she was going to say. "All of you Occult Club freaks, you're sick! I always knew there was somethng wrong with you... It was just a stupid prank, alright? And you killed my sister!"

"I did it only to punish you for what you did" he drew the blade closer to the girl's stormach to shut her up at last. "Simply killing you wouldn't be enough" it was time to end this.

"You'll pay for this!" she yelled at him, desperately. He wouldn't. What he did was right. They hurt Oka, and now he was going to kill them. It was revenge. An eye for an eye. Hurt for hurt. It wasn't just revenge – it was justice.

He impaled Sakyu with the long blade and she screamed in pain. But it wasn't as painful for him as killing Inkyu. It was rather... enjoyable.

"How does it feel like?" he whispered to her as he came closer, almost touching her face with his. "To be hurt-?"

He pulled the katana back, slowly, relishing every twitch that rocked her body and every agonizing sound she made.

He looked at the gaping hole where her stormach used to be. It was bleeding, reddeing her uniform more and more with every second that passed while they were standing there, motionless, her – to afraid to move, him – too fascinated with the sight of the wound he made in her body.

But the wound wouldn't kill her – it would hurt, and make her pass out eventually, but it was too slow.

"What are you waiting for?" she panted, not fully able to speak from the pain and the blood loss. "Finish me off! Or are you scared to kill me now?" she was right. Killing Inkyu was short and didn't give him any time to hesitate. But with her... he could still spare her life if he wanted to... but it was ridiculous! She would tell everyone what he did, and all he'd done over the past week would be for nothing. No. She had to die. Right... now.

She wasn't begging for mercy anymore. She was toying with him. Even when she was about to die, it brought her pleasure to see him suffer. He wouldn't give her the satisfaction of seeing him hesitate. He raised the katana, slowly, and got ready to cut through her neck and then her heart. "DO IT" at that moment, something changed in her voice. It was deeper, more powerful... almost... out of this world. Was he imagining things? Was she haunting him already? Her scream made his hand shake as he cut through her, not killing her.

Then, something happened that he could not comprehand. Sakyu raised her hand and placed on her rapidly bleeding heart, with a chilling smile. Her whole arm was covered in blood when something changed. The ring on her left hand started to glow. She closed her eyes when they begunto shine an unnatural gold and let out a demonic laugh that made him take a step back in fear. She didn't sound like herself anymore. And she surely didn't seem dead.

She wasn't human anymore. And at that moment, she started to change into something else.

Oka's POV

Blood. So much blood... on the weapon that killed this girl, on the murderer's hands, on the floor... she saw Inkyu Basu fall to the ground. It was on the rooftop-!

She gasped as she opened her eyes and regained her consciousness. She was lying on the floor in the Occult Club, in the middle of the room. Supana was sitting next to her, looking concerned and slightly terrified.

"Are you alright, Oka? What happened-?" she asked before Oka stood up and left the room in a hurry. Now was not the time to explain. Supana called after her, but it didn't stop her. It couldn't. She started running up the stairs. She still felt dizzy after being knocked out for a while, and she almost tripped a few times on the staircase.

What did this vision mean? Why was she given it? She knew it was urgent, it must'd already happened or was going to happen soon. If she couldn't do anything to stop it, there had to be something left on the rooftop that could lead her to the truth. And if the killer was still there, she would do anything to stop them. And maybe... now was her chance to learn the killer's identity.

She was almost there. Just a few more steps and she would know everything that happened on the rooftop...

Shin's POV

He took a step back when he realized what was standing before him. It was no longer Sakyu, and her transformation was almost complete. It didn't take him long to understand what he had just summoned.

She tilted her head back as two dark horns started growing on each side of her face and bit her lip at the feeling of bone piercing through the skin of her head, and spread her huge, dragon-like wings. She then straigtened up to look at him.

He was looking at... a succubus. And it was looking back at him as they stood there, frozen, waiting in silence.