The day of submission of notebooks:
Apparently in the first period where Mr.Haruto was teaching, he told to everyone that he will collect the notebooks by the end of class. So at the end of class, the submission of notebooks was situated.
Haruto: Alright! That's enough teaching for today. Everyone! I will be collecting the notebooks from each bench. So better get your notebooks ready!
Chifuyu: Well so basically what happened?
Sansui: *explains the situation* I don't even know why I came here in this class I swear to god... WHAT DO I DO???
Chifuyu: Don't panic Sansui, the three of us will help you in some way. Do you have the notebook by any chance to support the evidence?
Sansui: Yes...? How is that gonna help?
Chifuyu: Just you wait...
Sansui: Whatever you do... Please don't get me into trouble...
*Haruto comes over the last bench*
Haruto: Ok! the four of you, hand over the notebooks now.
3 of the students: Ok sir *hands over the notebooks*
Haruto: Sansui, where's your notebook?
Sansui: Yes, sir just a second... *whispering to Chifuyu* Should I actually do it, wouldn't he think that I'm mocking him?
Chifuyu: Don't worry, I'm here if anything happens. Just explain to him...
Sansui: Here goes nothing... Sir I have to confess...
Haruto: What? Your dog ate your notes?
Sansui: Not really but this time a person has ate it... *shows the condition of the notebook*
Haruto: Ha-ha! You think you're funny is it? Mind explaining?
Sansui: No sir I didn't mean it like that but I will explain. *explains the whole situation*
Haruto: See, I would believe you but the shoeprint in the back of the notebook cover says otherwise the fact that you showed your anger on the notebook.
Sansui: Sir, It's not true at all... You can ask one of my friends if you don't believe me.
Haruto: Ok, if you insist... Now who shall I choose?
Chifuyu: *in a low tone* I hope he chooses me...
Haruto: Chifuyu? Nah there is a chance that you will defend him from the truth, Dylan? Nah there is a chance that you will also defend him the fact that he helped you doing the notes I guess... Aha! Found it, Suzuya! Is the narration of the situation narrated by Sansui true or false? If false, did he damage the notebook by rage?
Suzuya: *was about to tell the truth until seeing his brother outside of the window* {In Suzuya's mind: Sh*t what should I do? Dang it! To make matters worse, my brother is standing at the window staring at my damn soul... Yup, this is gonna bring a big conflict to my friendship. I'm deeply sorry Sansui...Please actually forgive me for what I'm about to do} No Sir its false... He did damage the notebook by anger...
Haruto: Knew it! *grabs Sansui by the collar, takes him outside and closes the door* You are done for... I will be taking you to the principal's office for such insolence!!
The door is now closed and now Suzuya is at a loss of words realizing what he has done...