Rena woke up the next morning and saw her younger sister was still peacefully asleep, snuggled against Rena's chest with a smile on her face.

She had made a promise to herself that she won't raise her voice at Jurina ever again. Yesterday's events really took a toll on her, but she isn't going to let some stupid vampire upset her and her sister.

She slowly got up so Jurina could sleep as she left and went to the bathroom. She brushed her teeth and washed her face before heading into the kitchen and preparing to make breakfast.

As she was preparing breakfast, Rena heard feet shuffling into the kitchen.

"Morning, Rena-chan~"

A certain puppy sat down at the dining table, eyes still droopy from sleep.

"Good morning, sleepy head." Rena smiled as she placed the food on the plates. "You look like you slept well."

"I had a dream that I was in Ice Cream Land floating on a chocolate river…" Jurina mumbled softly. Rena giggled at the remark as she placed Jurina's breakfast in front of her.

"Let's eat up before we head to the agency."

"Hai~ itadakimasu." Jurina smiled as she picked up her utensils and dug into her breakfast.

Rena set her plate down and sat in front of her sister.

"Itadakimasu," she said before she indulged in her morning meal.

"It's really nice out today," Jurina smiled as she looked at the morning sun coming through the window.

"Let's hope it doesn't rain. The weather forecaster is usually wrong all the time."

Jurina giggled at her statement. "Maybe if it stays sunny, the two of us can have an outdoor picnic for lunch."

"Perhaps I should bring an umbrella just in case."

"Oh c'mon, nee-chan~ Let's not worry about it. Today's gonna be a good day! I can feel it."

Rena smiled. "If you say so."

After breakfast had finished, the two cleaned their plates and got dressed to head to the agency. As they rode on the train taking them to the building, Rena was thinking about how she would handle Black.

She knew she'd be in trouble if she isn't able to reveal Yuki's true nature in time. Who knows what she could be planning. Even though she said she wants redemption, Rena just had a hunch there was more she was hiding. She knew, one day, she was going to reveal her true intentions.

Rena was going to stop her, no matter what it took.

"I won't forgive vampires… I'll kill them, all of them…"

"Re~na~chan~" Jurina poked Rena's cheek. "Quit staring into space~"

"Oh, sorry."

"You're worrying again, aren't you?"

"I'm sorry…"

Jurina kissed her sister's cheek.

"Don't apologize. We all have moments like that."

Rena put her head on Jurina's shoulder. "Thank you, Jurina. For always being there for me."

Surprised by her sister's sudden actions, Jurina said nothing. She just held her hand up and smoothed Rena's hair. This moment felt so peaceful. Jurina felt as if she was going to fall back asleep in her sister's arms.

But then, they arrived at their stop. She quickly brushed off the drowsiness and she and Rena got off.

As the pair walk into the building, they were met by a very out-of-breath Takamina.

"You came just in time!" the short girl said. "We have received info of a couple of Daywalkers robbing a nearby hospital."

Jurina smirked. "Seems like somebody's hungry. Mou, Rena-chan. Let's go hunt some vampires!" She ran in the direction of the armory.

Rena turned to Takamina. "Don't worry. We got this."

Takamina looked worried. "Are you sure? What happened yesterday-"

"I know. I just mistook her for another person, that's all. I have already apologized to her."

"Alright then. Just be careful, and look after that sister of yours. She always dives in head-first when it comes to these missions."

Rena chuckled. "She can't help it. She's still a kid."

She then saluted and went with Jurina to load their weapons. Not too far from them, Yuki and Sae had entered the agency building.

Yuki passed by the pair as they left the building, grinning as she saw her plan was going very accordingly. She turned to her still brainwashed servant and whispered in her ear.

"Keep a good look out," she said as Sae nodded.

-

Yuki first headed for the armory.

Maeda Atsuko- aka Acchan, was the head of the weapons department of the agency. She often teamed up with Mayu to invent new weapons and come up with new battle strategies.

Acchan just had her big breakfast, and is now dozing off at her desk. Black came in and saw the sleeping girl. She saw it as the perfect opportunity to brainwash her while her body was still tired.

She quietly approached the sleeping girl and whispered in her ear.

"Acchan… Wake up, Acchan."

Acchan's eyes drowsily opened and looked at Black.

"Who..?"

"Look at me, Acchan," Black leaned forward and hypnotized the girl with her eyes. "Look deep into my eyes."

"What…?"

When her eyes finally adjusted, all Acchan could see was Black's mesmerizing eyes. Her eyes drooped sleepily as she was locked on Black's gaze.

"Good," Black smiled. "You'll do as I say, understand?"

"Yes.. I'll do as you say…"

"You will completely forget the existence of the vampire Black. In your mind, there is nothing but emptiness when the name is brought up. Blank, like a fresh sheet of paper."

"Blank… empty…"

"You're also good with tech, correct?" Black then asked. Acchan responded in a nod. "Good. You'll destroy all the security footage from the past two days. Leave it completely erased."

"Erase security footage…"

"Very good," Black smiled and caressed Acchan's short hair. "Now, you will go and do what I have told, and when you come back, you'll fall back asleep and wake up with no memory of what happened."

"No memory…"

Black nodded. "Now go."

Acchan nodded and blankly stood up, walking out of the armory and into the room where the security footage was held. She saw a cup of hot coffee which belonged to the person who watched over it, who was now deeply napping.

She took the cup and knocked it over onto the computer hard drive, causing it to short circuit. She knew that once they got it fixed, all the data of the security footage was gone forever. She left and when Black saw the blacked out computer screens, she knew that there was good progress in her work.

"These cameras should be shut down for quite some time now," she said before heading to her next destination.

She found the room where Intel was located and slowly opened the door. In the pitch black room, she saw a girl sitting at a table with many computers showing all kinds of info. She was surprised at how one person could do all this work.

It didn't seem the girl notice her, so she simply closed the door and walked in. When she tapped her shoulder, the girl jumped back.

"Woah!" She backed away as her eyes adjusted and saw Black. "You scared me… Um, who are you? It's really dark in here…"

When Mayu adjusted her eyes again, the light from the computers reflected some of Black's face. Mayu's eyes widened.

"You're..!"

"Shh, don't scream," Black placed her finger on Mayu's lips and moved away some of her bangs. "Just relax… everything's going to be just fine."

"W-why are you here..?! How did a vampire-?!"

Black grabbed Mayu's face and pushed her against the table, making her sit down.

The vampire placed her knee in between Mayu's legs as she stroked her shoulder seductively, holding her face and staring into her eyes. She saw Mayu's eyes growing hazy, but she wasn't falling under.

She smirked and leaned forward, kissing her lips deeply. Mayu's eyes widened and was completely captivated in Black's gaze. Her pupils dilated and became empty. Black continued to tease Mayu a bit and nibbled her ear, the latter pursing her lips as she tried to contain herself.

A few cries escaped her lips as Black continued her teasing and trailed her lips down to Mayu's neck. She was about to take a bite when…

"Jurina…"

Her eyes widened and she pulled away. Mayu's eyes fluttered, nearly shutting, and her cheeks flushed.

"Jurina… the truth is.. I l-like…"

"I understand." Yuki caressed Mayu's cheek, staring into her eyes and hypnotizing her further. "But for now, you will obey my commands. You will exactly what I say."

"I'll do exactly what you say…"

"You're going to delete all the information you have on the vampire Black. Erase every piece of data off your hard drive. Leave nothing."

"Leave nothing about Black…"

"You will also erase every memory you have of her from your mind. She won't exist, you will know nothing of her. You won't remember."

"I won't remember…"

"Good." Yuki kissed Mayu's cheek, then whispered in her ear. "Let's continue what we left off, shall we?"

She then leaned down and kissed Mayu's neck, causing the girl to cry out. Black bared her fangs and bit into her soft skin, tasting her blood. Mayu's hands clung desperately to Black's shirt, then fell limp the next second.

Black parted and wiped away the blood on her lips. She recognized the taste, it was the same as Sae's that night. The most delicious kind of blood.

"Virgin blood…"

She touched the wound slightly and kissed it, making to heal just like Rena's.

While she had the thought of Mayu and Sae's taste, she had suddenly thought back to Rena. Something about the taste of her blood intrigued her. It wasn't virgin's blood, she could tell. But there was still something that distinguishes it from anything she had ever tasted before.

As she was thinking about it, she soon got back on her train of thought as her eyes trailed off and she noticed a cabinet not too far from where they were.

"What's in there?" Black asked, pointing at the cabinet.

"Files…" Mayu said breathlessly. "Profiles and information of.. every vampire we've encountered…"

She walked over to the cabinet and opened one of the drawers. She found her profile and pulled it out, closing the drawer back.

"This won't be needed any longer," she said before, almost like magic, she made the file burn instantaneously and fall to the ground in ashes.

She then walked over to Mayu who had a still blank expression.

"Now… proceed."

Mayu nodded and turned to the computer, her fingers typing away as Black smiled.

-

Meanwhile, Rena and Jurina finally came back after having battled out the Daywalkers.

"Man~ that was quite a fight they put up," Jurina rubbed her neck.

Rena hissed as she placed a band-aid on her cheek, which had a wound from the fight. Jurina also had a few places bandaged up, but for the most part, she was okay.

"Yes.. they would've almost got away."

"Just barely, though. No one can stop us, right, Rena-chan?"

Rena looked back to see her sister's smile. She smiled as well.

"Yup."

It was then that the agency's nurse, who focuses on the medical ward, Kojima Haruna arrived.

"Hi, girls!" She smiled. "Looks like you had a rough mission."

"A bit."

"Nothing we can't handle."

"Alright. You let me know if I can do anything," she winked.

"Of course, Haruna."

"Bye Nyan-nyan~" Jurina waved as the two exited the room.

As they stepped out of the infirmary, Rena noticed Yuki walking down the corridor. She felt something fishy was going on, noticing the direction she came from.

"Hey, Jurina. Did you see Yuki leaving Intel?"

Jurina's eyebrows furrowed. "No. Why?"

"I think I just saw her leave that way." Rena pointed to where she last saw Yuki.

"Huh, weird. She shouldn't be down there unless she got special permission from someone. What do you think happened?"

"I don't know. But something's…" Rena started to walk towards the door to Intel, but was stopped as she was pushed to the wall. "Eh?!"

She looked and saw Sae in front of her, extremely close to her.

"Sae? What are you doing?"

"Rena…" Sae had a serious tone. "I can't hold it anymore..!"

She embraced Rena tightly, shocking the girl. Jurina covered her mouth in shock.

"I.. I love you, Rena!"

"HAA?!" Rena's eyes widened.

"I always have… Even today, I could feel my heart pounding looking at you… Rena.. I want you to be mine!"

Sae broke the hug and stared at Rena's eyes.

"Will you.. be my girlfriend?"

That's when Rena saw it. Sae's eyes; they looked empty. Her pupils were dilated, and her normal brown eyes which sparkled with light were pitch black and lifeless.

Rena soon knew something was going on. And Yuki, no, Black had something to do with it. She had to get out of this situation and find Mayu, but Sae had no means of letting her go.

"Jurina? A little help here?"

Jurina was still too shocked to listen to her sister's words.

"MATSUI JURINA!"

The younger girl snapped back into reality and when she saw the situation, she grabbed Sae, pulling her off.

"Hey! What are you-?" Sae tried to punch Jurina, thinking she's a rival trying to steal Rena away.

"Sorry about this, Sae-chan."

Jurina then chopped the back of Sae's neck and knocked her unconscious. The tall girl fell into Jurina's arms.

"I'll let her rest in the infirmary. Go check on Mayu."

"OK."

As Jurina dragged Sae back into the infirmary, Rena ran down the hall to the room Mayu was in. She opened the door and saw Mayu collapsed in front of her desk, asleep.

"Mayu!" Rena ran to her and looked at her neck. There wasn't any bite mark from Black, but the scar still remained, which means Black must have healed it. She shook the girl's shoulders, "Mayu, wake up! Mayu!"

Mayu's eyes sleepily opened as she woke up and looked at Rena.

"Rena..? What's wrong?"

"Mayu, where's Black? She was just in here. I saw her come this way."

Mayu raised her eyebrow. "Who?"

Rena held her head. "Oh no… not Mayu!"

"Who is Black? I've never heard of her."

The hunter knew she wasn't going to be able to make Mayu remember Black. She was gone from her mind, which she surely didn't expect to happen to the genius.

"Nevermind. Did Yuki come this way?"

"Um, I don't think so…"

"Okay then." Rena patted Mayu's head. "Thanks. You can go back to sleep now."

As the smaller girl went back to sleep, another thought came to Rena's mind.

"Perhaps I can look at the security footage and find out what happened…"

Rena headed back up and met up with Jurina.

"Sae's resting now. What got into her all the sudden?"

"I don't know. You go find Yuki. I'm going to check the surveillance cameras."

"Alright."

The two split up again and Rena ran to the surveillance room. She was shocked to see none of the cameras were functioning and everything had shut down.

"No…!" Rena pulled back her bangs, holding her forehead. Anger burned in her eyes again as she knew, this was Black's doing. "That vampire… She'll pay for this..!"

-

In another part of the building, Jurina was running down the hall in search for Yuki. She had went down every corner, but couldn't find her. She was gone without a trace.

Jurina placed her hand against the wall as she stopped running to take a breath.

"..Haa… Where could she have gone..?"

"Well, someone looks a bit exhausted," a voice chimed in.

Jurina looked up and saw a tall woman with short brown hair smiling at her.

"Yo."

"MARIKO-SAMAAA~~~" The puppy hugged Mariko with a big smile.

"Hey, how are you, my lil puppy?"

"Good~" Jurina smiled, then remembered she was doing something. "Oh, that's right. Mariko, they keep all sorts of information on vampires in the archives, right?"

"Yeah..?"

"Could you help me access them? I need to find something."

"Okay. What is it?"

Jurina looked around, making sure no one was there, then whispered, "It's about a vampire. Black."

"Black? I think I remember Sae mentioning her once."

"Yes. Rena faced her a few nights ago, and now she thinks she may have infiltrated as this new girl named Yuki."

"Sounds serious." Mariko looked around, then turned back to the girl. "Alright. Let's go."

The tall girl lead Jurina down the hall to where the archives were located. She placed her hand on the scanner and let it scan her handprint.

"Match: Shinoda Mariko."

The door opened and the two stepped in together.

"Anything you need, it'll surely be in here."

Mariko walked up to one of the screens and started typing in the information. But the result that came up surprised her.

"Data not found."

"What..?"

"Maybe her info accidentally got deleted."

"Maybe…" Mariko attempted to try again, but then the screen glitched and turned red.

"ERROR"

"Error?"

"A bug must've got into the system. Sorry, J. It'll be a while before I can access anything. I'll call maintenance and have them look at it."

"Okay."

The two left and had parted ways, so now Jurina was alone.

She turned back to the doorway, looking at it. Then, she punched the wall, her eyes turning serious.

"Kashiwagi Yuki… if you are a vampire… I won't let you do anything to Rena," she growled lowly.