Yashiro-San of the classroom

What's going on?

I opened my eyes, I was laying somewhere. I decided to sit and take a look around me. I was in a classroom, alone. There was no student, neither Hanako-kun or Kou-kun. The ground was cold. 

I started panicking. Why was I alone? My heartbeat started getting faster and faster. I had to calm down. I had no memories on how I got there. I looked at my hand. I had one green heart on the back of my two hands.  At first I though it was a boundary, but there was no water. What was happening?

I went out of the classroom, I needed to find Hanako-kun! I'm sure he could help me! I was wandering in the corridor, my eyes were looking everywhere. I took a look trough a window, it was dark outside, a bunch of shinny stars and the moon where brightening the sky! It was beautiful. I was sure Hanako-kun was looking at this!

I felt so alone at this moment. I went back on my way, tears began to burn my eyes. Why did I suddenly felt like that? I wasn't alone, was I?

The more I approached the bathroom, the more screams I could hear. Why someone was yelling like this? I stopped walking at the stairs. I saw someone going out of the girl bathroom followed by another person. At first I didn't recognised them. 

After a long time, I was able to tell who they were. Kou-kun was followed by Mitsuba-kun, he was crying and it was clearly mixed emotions, anger and sadness. He was pointing his fingers at someone and kept saying this wasn't his fault. Apparently something happened during my absence. Mitsuba-kun was trying to calm him, he also had tears on his face. Kou-kun was firmly holding his staff, the seal Hanako-kun put at our first meet was gone.

I heard a voice stuttering, I could say for sure, only by the sound. The other person had mixed emotion at this time. I recognised, it was Hanako's voice.

Hanako:  What did you do to try to change it?! Tell me!

Kou:  I made her avoid everything dangerous! It's your fault! You never tried to change something! You kept on dragging her in theses damn boundaries!

Hanako: ...

Kou: Look at you!You know it's your fault! Don't try to make me take the consequences of yours actions!

Hanako: We destroyed every yorishiro! They weren't supposed to be able to attack like that! 

Kou: Even if they weren't able, it was still dangerous! 

Hanako: I-

Kou:  I don't wanna hear you, see you anymore! I have nothing to do with you anymore!

Mitsuba: Guys- 

Hanako: Go if you don't wanna see me anymore!

Mitsuba: Guys, do-

Kou: Yeah! Don't worry, I'll be gone in a none of time!

Mitsuba: Guys, stop this! Do you think she would like it?! See that her friends are fighting over who let her die?!

Kou: ... She's not here anymore... She won't know... And I know deep inside it's his fault, I don't want to stay with a murder ghost. He don't even know how to handle his proper emotions!

What-?