He healed her loneliness

Her best friend dies more killing

A few weeks later Yuki noticed that her best friend, Ayaka has been acting very strange around Kazuo. Yuki out of nowhere found an ax and decided to bring it with her to school somehow managing to be able to hide it, in class she saw them talking and at lunch Yuki stayed quiet until she finally questioned Ayaka.

"So Ayaka what's going on with you and Kazuo?" She asked wanting to know. "Huh? What do you mean?" Ayaka asked looking at her. "What is your relationship with Kazuo?" Yuki questioned. "We're friends, just friends. Why?" Ayaka asked looking confused. "Just friends? I didn't know friends flirted with each other making the other friend jealous." Yuki said a bit angry. "What are you talking about?" Ayaka still looked confused.

"Your trying to take him away from me aren't you?!" Yuki said looking at her. "What no of course not!" Ayaka smiled at her. "Oh so you don't mind if I go talk to Kazuo about it?" Yuki asked getting up.

Yuki walked up to Kazuo sitting down next to him.

"Hey Yuki what's up?" He asked looking at her. "Whatever you do, do not go out with Ayaka!" Yuki said looking serious. "What why?" Kazuo asked wanting to know. "I can't explain it just don't, if she tries to make a move on you just back away!" Yuki demanded and took off leaving.

After lunch before school was almost out everyone was able to just relax and talk in classrooms, hallways, or whatever. Yuki was gonna stay in one of the classrooms when she spotted her friend sneaking into a classroom where Kazuo was. Yuki sneaked to the classroom and watched.

"Hey Kazuo!" Ayaka said cheerfully. "Hey what's up?" He asked smiling, "Did that bitch say anything to you bad about me?" She asked getting close to him. "Who? You mean Yuki?" He asked confused. "Yes that crazy bitch that's my best friend, did she anything about me?" She asked him sounding a bit irritated. "Are you guys in an argument?" He asked wondering.

"Let's just say I'm gonna make her jealous by stealing your first kiss." Ayaka said getting close. "Wh-What?" He asked her.

Yuki's eyes widened from what she heard, she opened the door looking at them.

"Ayaka can we talk for a moment!" Yuki said trying her best to act sweet. "Sure!" Ayaka followed Yuki.

Yuki led her to the gym closing the door behind them.

( How dare she try and steal his first kiss! I'll be his first! I don't care if she's my friend she's still competition and I shall eliminate her!)

"What are we doing in here?" Ayaka asked. "Since your my best friend Ayaka, I have a secret to tell you and you can't tell anyone!" Yuki said acting serious. "Ok I'm listening, what is it?" Ayaka asked wanting to know. "I killed four girls here who were after Kazuo well make that six now." Yuki said smiling. "You what?! Yuki are you crazy?!" Ayaka asked.

Yuki smiled and laughed at Ayaka then got back to being serious.
"I knew you were trying to steal him from me! I knew it! Now you have to begone!" Yuki said pulling out an ax. "Yuki no what the hell you crazy bitch!" Ayaka tried to run away.

Yuki chased Ayaka towards a door and before she could leave, Yuki sliced her head off watching her neck squirt out blood as she gets covered in blood. She starts crying at the sight of seeing her friend dead but then she starts laughing.
( My one and only best friend in the world had to die, that dumb bitch deserved it for trying to take Kazuo away from me. It seems like he "cares" for me but he really doesn't, I'll show him how being alone doesn't bother me!)
After getting rid of the body and her weapon and cleaning up the blood, it was already after school and people were already leaving.

The next day there was news about her best friend on the news and when she got to school everyone was talking about it, she had to act like she was really upset about it so she kept quiet to herself and hid inside the gym.

( I'm alone.. I can't talk to the other students, they won't like me. What do I do? No snap out of it Yuki! Your going to kill those bitches.)
Yuki ditched school during class time and went to a corner market to buy food for her lunch, she was reaching for the last box of pocky when someone else grabbed it and paid for it. She paid for her stuff and followed the person, she attacked them by pushing them into an ally and she sliced their head off.
At school she made it back just in time for lunch and she went back in the gym after changing and she ate her lunch there, while she ate she started crying until she heard one of the doors open.

"Hello?" The person said entering.
She looked up and saw that it was Kazuo then she looked down.

"Yuki? What are you doing here?" He asked sitting by her. "I'm eating here, alone. Leave." She said without looking at him. "No I'm not leaving, I'm staying here." He said while opening up his lunch. "Why do you want to stay here? Why?!" Yuki shouted looking up at him. "Yuki.." He said looking shocked as he sees that she was crying.

She wiped her eyes and continued eating, they both ate their lunches in silence.
"I looked everywhere for you before I found you in here." Kazuo said looking at her. "Why? don't you get it, I told you I was fine being alone." Yuki said after finishing her lunch. "I was worried about you Yuki! I thought you also died! I care about you Yuki!" Kazuo shouted furiously at her.

( He was worried? He cares? No he shouldn't care. He should be afraid since I'm the killer. I killed the other students, I did it all for him because I love him.)
"Kazuo.." Yuki said looking at him. "I'm sorry I didn't mean to yell at you." He said looking at her, "You can't.. You just can't care for someone like me!" Yuki shouted as she took off running.