Author's note: I knew it's too late. But I want to give you a Halloween special. At first, I thought to write about the murder on the island. But I don't want a cute girl to die anymore. Another hurt me too much. Then, I got the idea while writing Ibuki's first meeting scene. I'm inspired by subreddit r/Ruleshorror. This was the rule for joining the classroom of the defect.

Posted by u/Ibumio 5 minutes ago

I'm studying at a school in Tokyo, Japanese. We are separated into 4 classes. I'm in class C.

Last summer, my school took us on a summer vacation on the island. I argued with my class leader, he punched me in the face. So I was very angry and left my class.

I was too careless. When I came into the forest, I didn't know where I should go.

Around 3 p.m. There was a three-man from class D who found me. Their name is Y, I, and A. They asked me why I was there. I told them. Y and I pitied me so they told me that I could live with class D for a while.

Since I had no place to go, I agreed with them. Therefore, I walked to their camp with them.

On the way. A gave me a piece of paper.

"What's it?" I asked him.

"Look by yourself," He said in a monotone voice. "And do what it said, or you'll regret sure."

I was confused but I started reading it;

You're the lucky one who'll join class 1-D for a week on this island. But please remember. If you don't keep the rule, someone bad will happen to you for sure.

1. Don't trust anyone. Class D is full of defects. You don't know what they will do. Don't trust anyone even Hirata.

2. Hirata Yousuke is the class leader, he will help you whatever you ask. If you have a problem, don't mind asking him for help. But like the first rule said, don't trust him.

3. Although it's almost impossible. Hirata can angry. But for your sake, don't make him angry. If you did, Hirata will torture you until you listen to his words and become a good student.

4. An easy way to make him angry is talking about his old friend and suicide or bullying. Now you know what you should avoid.

5. Hirata is still the kindest guy in your class. If you don't make him angry, there'll be no problem. But if you do, run as fast as you can and pray for the god. This is the last way.

6. If you are a woman. Don't say anything with Ike Kanji, Yamauchi Haruki, and Sudo Ken. Also known as the idiot trio.

7. No matter what your sex is. You should avoid Sudo Ken. He is easily angry. And when he's angry, he can destroy everything. The good news is although Sudo is easily angry, his fist is less hurt than Hirata's. And he is the most reasonable one in the idiot trio.

8. Ike Kanji and Yamauchi Haruki are the top-tier danger for all women. Don't let your guard down when they're around.

9. If your breast is bigger more than size C. You should stop it with the fabric. Make it as small as you can. If you're lucky, it won't provoke Yamauchi.

10. If you attract Yamauchi, you have to do your best to attract Ike too. Ike will protect you from Yamauchi because he wants to own you. But don't worry. These two perverts will fight each other and no one will bother you.

11. For the girl. If you know Ike Kanji is looking at you, don't communicate with another girl. If you do, you will wake Ike's instinct up. Trust me. Ike will make sure you and the girl you communicate with become a couple. No matter you want it or not.

12. There is some girl who wants to use Ike to make her and her friend become a couple. I don't recommend this way. Because after you become a couple, you can't break up although you want. Ike won't admit it.

13. Until now, we can't find a way to kill these three, so don't mess with them.

14. Don't give Sotomura Hideo (a.k.a. Doctor) your number, your email, your contact, your birthday, or other personal information. Actually, don't talk with him. Whenever he reaches your electronic account, he can hag and do everything with your electronic information. Also, don't let him touch your electronic device. He can hack it with touching too.

15. You may have some problems with your homework. But don't ask help from a guy with glasses named Yukimura Teruhiko. He will teach you until you understand. The problem is his way to teach is too hard to understand. Because of it, he'll follow you all around and force you to study with him. On the day, on the night, in your classroom, or your bathroom. You can't escape from him.

16. Don't call Yukimura by his first name. Call him Keisei instead. If you call him Teruhiko, his first name will be the last thing you say.

17. Miyake Akito looked harmless. But if you talk to him about gangsters, he will get angry. No one can escape from his arrow.

18. Don't let Haruka Hasebe give you a nickname. Like Ayanon, Miyajji or Yukimu. If she does, you'll slowly forget your real name. You won't even remember your surname. You'll forget your family and become her puppet.

20. Sakura Airi is like Miyake Akito. She looked harmless and naive. But beware about her words. She doesn't talk much. But everything she talk will become true. If she blesses you, you'll be lucky for a whole day. In another hand, if you make her angry, and she said "Go to hell"---Well, I think we know it.

21. Don't look at Sakura's eyes without her glasses. Behind that glasses is something that a normal being can't resist. It's beautiful, scary, and dangerous.

22. If you're with Matsushita Chiaki. Don't make something that will lead her to think you're smart. She will start following you all around. And she is the strongest stalker in the world. There is no way to escape except confessing your love to her. But beware if you confess to her. You'll become the one who stalks.

23. Koenj Rokusuke is the safest man in the class. If you don't make him displease, he won't do anything to you. But don't ask Koenji to do anything because he will promise but not do it.

24. Don't talk or make Shinohara Sutsuki displease. If you do. Shinohara will start annoyingly insulting you and she'll make you want to murder someone, Mostly, her.

25. Don't bully Karuizawa Kei and don't ask her about her scar. She isn't dangerous herself. But something that protects her is. If you don't want to be blackmailed or punched on the rooftop, don't do anything with her.

26. You can ask Kushida Kikyo for help. But don't trust her. Don't tell her any secret, no matter how little that secret is. If you tell her, she'll reach your other secrets. And when she does, your life depends on her.

27. Don't make Kushida angry. She never shows it on her face. But she can displease anything easily. Mostly, she won't do anything to you. But there is a line you shouldn't cross. Since we don't know where is the line. So you shouldn't make her angry in the first place.

28. Ignore everything that Kushida does behind your back. It isn't your business. If you see it, just walk away silently and forget everything. Don't let her catch you. You'll be happy for a second, then it's hell.

29. Don't take a waffle into the classroom.

30. If Horikita Suzune is 20 meters or less far from you, don't own any waffles.

31. Don't touch Horikita Suzune.

32. Don't eat Horikita Suzune's food. Although she gives it to you. When you do it, you just deal with a devil.

33. And for your mental health, don't talk with Horikita Suzune.

34. This is the most important rule. About Ayanokouji Kiyotaka. You can't do anything. You never escape from him. Everything you can do is hide and pray to your god, prophet, or any holy being that you believe. You should Ayanokouji's plan wasn't relevant to you. This is everything you can do.

You know everything now, please enjoy your vacation on this dream island. Class D is full of friendly people. I hope you'll be happy.

Chabashira Sae

After finishing reading, I raised my face up and looked at A.

"What the fuck is your class?" I mumbled.

His answer froze me.