20 Extra class with Natsumi-san and...Ai?

I went to changing room to change quickly and Ai did the same in the girl's changing room. I was able to change pretty quickly and went to the classroom and almost all of them were already there except for Ai. Kizuhara and his group smirked at me while the other guys just stared at me mockingly.

Ignoring them, I sat down in my seat, and then Ai entered the class. She first eyed the class one by one and then sat down. Immediately, everyone in the class was all around her asking where she was.

"Oh, Kazu-kun actually twisted his ankle so I was in the infirmary with him," she said to them with an unwavering smile.

The boys glared at me thinking something which definitely did not happen. I just got nursed by Ai and got a lap pillow. It was nothing much, for me.

The teacher came and started teaching and I for once did not doze off and actually studied something. Derivatives are hell, I get it.

School ended and I was stopped by Natsumi-san for extra class while Ai also stayed in the classroom with me. The person of interest entered the room with her hand on her stomach and her shoulders slouched down. She looked as if she would just stumble if I did not help her. I had already changed my seat and sat in front with Ai sitting beside me.

"Shiba...food...."

Again, she dropped her face on the desk, and then I placed the extra lunch I made for her beside her. Ai narrowed her eyes seeing the lunch box. She did not know about this? No, she is just feeling jealous anyway.

Natsumi-san opened the lunch box and started eating with a big smile on her face. She was eating too fast.

"Sensei, you are eating too fast. Slow down a little," I said to her out of worry.

"Say that when you don't eat the entire time in school."

"Then bring your own lunch," I said rubbing my forehead.

"Then I won't be able to eat such good food. This is the best food that I had ever eaten. You should really think of your career option as a chef since for your other option you would need to actually study," she said while eating the food.

"Other career option?" Ai said tilting her head cutely in confusion.

Natsumi-san finally noticed Ai's presence in the class and her hands and mouth stopped mid-way. It is supposed to be a really serious matter because I have never seen her stop mid-way waiting like this. This is like a one-in-a-bazillion type of chance. Looks like she really forgot that Ai was sitting there beside me or it is just because of her hunger because it makes you stop noticing very common things around you.

"What are you doing here Tsubaki?" Natsumi-san asked gulping the rice she had in her mouth.

"Oh, since Kazu-kun is staying here so I decided to stay back with him," she said clasping her hands together forming a smile on her face. "On top of that, if you going to teach him then it would be good for me since I can revise the lesson better this way."

"But you don't have permission for that, do you? Only students having clubs and being asked to stay are allowed in the school building at this time. Don't you know that?" she said.

"Oh but I got permission for it," Ai said innocently smiling.

"Who gave you the permission?"

"You did."

"When did I give you permission?"

"Sensei," she said opened her eyes and her red-eye started glowing. "Remember, I asked if I could also stay back because I had a problem with the lessons and then you allowed me."

I looked over at Natsumi-san who was standing straight and just nodding her head. Wait, don't tell me Ai is using her vampire abilities on her. So that is why her eye was glowing.

"Oh yeah, I did. Sorry, it kind of slipped my mind since you are such a great student," she said hitting her head lightly.

"It happens sensei and thank you for keeping me in such high regard."

The voice in which Ai was talking right now sounded the same but I could tell, no, more like I could feel that there was a certain manipulative tone in her voice. It sounded more alluring and convincing and it was enough to make anyone believe what she was saying, like anything. If she were to stand in the middle of a crime scene with blood all over her and said she did not do it, one would immediately believe. Honestly, it is really scary.

"Okay, so for today's lessons. Shiba, open your notebook and start making notes of what I am saying," Natsumi-san said and I opened my notebook.

"Roger."

She started teaching me the lesson and I looked at Ai who looked confused for some reason. I could not actually get why that was so but I could see a big hypothetical question mark on her head as she tilts her head.

"Um...sensei, I think you didn't teach us this," she said raising her hand. "No, this does not even sound like part of our year's portion."

I could not quite get why she said that I mean this is not supposed to be possible. I mean, sure I always get first place in English because it was always so...damn...easy...oh, I am so dumb.

"Sensei, you have been teaching me things of the older classes, weren't you?" I asked her and she let out a sigh.

"Took you long enough to realize that genius. Yes, I have been teaching you things from the older classes. Students even abroad do not study this in their high school," she said making me hit my fist on my palm.

"Wow, I never expected Kazu-kun learning portions of the older classes. He is so intelligent," Ai said in admiration.

"This idiot has the brain to get full in every subject but he had filled it with junk," Natsumi-san said lightly hitting my head.

"Sensei, don't say that. Manga and light novels are some of the few things really particular to our culture. Please do not bad mouth them. There are completely different worlds that you can explore in them. As Mark Twain once said, "The man who does not read good books has no has no advantage over the man who cannot read them." It explains my point perfectly. It does not matter-"

"Okay, okay Shiba-sensei, you win the argument now shut or I will make you," Natsumi-san said clenching her fist and I gulped.

"Well, I could at least won an argument against you."

"That is because I could not hear you rambling now get back what you are supposed to do," she said.

"Roger."

Natsumi-san continued explaining today's lesson which did not happen in the class. Now I understood why all the stories and topics in my English books were things I already knew. I always found it really weird. Ai also tried her hardest to keep up with us but I could see her eyes spinning and in the end, she crashed her head on the desk. Looks like she was overheated.

Now she is even hotter. Why did I say that?

She was sent a little before for just walking around to cool herself down. She went with her bag and I continued with my lessons with Natsumi-san.

"Kazu-kun huh? You got yourself a nice catch Shiba," she said in a teasing voice.

"Sensei, I was thinking about when you will talk about it. Who knew you were looking for the right time to pounce when Ai is not around," I said completing the exercise assigned to me.

"But I have to say, Shiba, you really got yourself a gem from a pile of crap," she said making me raise my eyebrow.

"What is with this very specific and weird use of metaphors? Also, who are you referring to as crap?" I asked her but she did not answer.

The lessons were over and she shut her book and I packed my stuff quickly and dashed out of the class. I did not tell this to Natsumi-san but letting Ai out alone right now was a bad move. Really bad move.

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