Crush on the protagonists best friend

Chapter 2 - Obsession

'He is and will always be mine and mine alone'

I don't really know when this kind of obsession had started. But about three years ago, where I had just started to feel a one-sided affection for Keno, the signs first started to show.
I started to think that I would never forgive him or any girl if they get emotionally or physically closer.
You can call me a Yandere, I won't deny it. But I could never physically harm someone.
It's a different topic with mental harm tho.

After some time, the thought
'don't get any closer to him.. I won't let you go if you do'
crossed my mind when a girl handed Keno some Homework, that was assigned the other day.
I was shocked by myself, but I soon came to get used to such random thoughts.

I knew they weren't okay and I still know, but when I look at him they just appear. If Keno knew about this ugly and disgusting side of me, I don't think he would still smile so warm and bright at me.

I think that Akane noticed something is off about me.
I think that because he behaves weird whenever I am nice to Keno. He becomes nervous and stutters more often. In my opinion, that's a sign of anxiety for something.
"...n?"
I will have to do something about him if I am sure about my suspicion..

"Y/N!"
Surprised, I look up.
"Finally we see your eyes open, y/n!" The teacher says. The whole class starts laughing and giggling.
Was I.. asleep? The whole time??
I look up again, only to see the teacher looking at me angry.
"Y/n! I was asking if you could come to the front to answer this question?!"
Eh? Is he picking on me? Because I was sleeping?

I stand up and look at my table.
"I am very sorry, sir! I wasn't listening!"
*pfft
I glance at my right only to see Ann laughing at me.
"Of course you weren't. You were sound asleep~"
She says highly and stands up to walk to the front.
Elegantly, she writes the answer at the blackboard.
"Correct!" The teacher says.
"Have Ann as an example, y/n. She can listen and answer such a question correctly."
Don't compare me to her.
She was raised with a golden spoon. She has everything.

".....I apologize, sir.."
The only think that is appropriate in this situation is to apologize.
"I won't be sleeping in class again.."
"Good. Now, class. Open up page xx in your book—-"

As I am listening to the history teacher, Keno taps on my shoulders.
After a quick glance to the front, I turn around.
"Don't worry about it! Everyone falls asleep in class once. You just need to focus again once you wake up!"
He is always so positive..
"It's just that it's our first day at Highschool.. and that was a no-go to do at the first day of school-!"
He closes my lips with his finger.
"Ssh! You don't want the teacher to yell at you again, do you?"
My heart almost stops.
I feel my face turning as red as a ripe tomato. I quickly turn around again and whisper
"Y-yes, you're right. Thank you, Keno"
Behind me, I hear him giggle, but I don't turn around again.
My heart wouldn't bear it.