"The incident took place in Naegi's room." Began Kirigiri. "Maizono was first attacked in the main room. She then fled into the bathroom."

"Then the killer ran after her…" Added Mondo. "And they got into the bathroom."

"At that point, the killer had to try and bust down the door because Maizono had locked it." Assumed Leon. That's where I cut him off.

"No, that's wrong!" I exclaimed. "The reason my bathroom didn't open wasn't because it was locked. After all, the girls' rooms are the only ones with locking bathrooms, right?"

"Yes…" Began Sakura. "Now that you mention it, that is true."

"Then… Why didn't your bathroom door open…?" Asked Chihiro.

"Because it was stuck." I explained.

"Huh?" Questioned a skeptic Leon. "What are you talking about?"

"My bathroom door doesn't fir in the frame quite right." I continued. "Monokuma over there can testify to that."

"Yup!" He nodded. "True as true can be! But ya know… You're supposed to be the Ultimate Lucky Student, right? But to have such a cruddy door… Upupupu…! That's not lucky at all!"

"Hold up!" I exclaimed. "What does that mean?"

"Eh?" Questioned Monokuma as he cocked his head in confusion.

"You keep saying that I'm lucky, why are you saying that?" I continued. "Nothing on my acceptance letter said anything about it, and as for my luck? I have the worst of it!"

"Upupupu!" He laughed. "That's for you to find out!"

I groaned. I guess I won't figure it out…

Kirigiri then cleared her throat to gain our attention. "So, the reason the door didn't open was because it was stuck…" She began. "But the killer didn't know that, and assumed it was locked. So they tore apart the doorknob to get in."

"Okay, but why would the killer even think the door was locked in the first place?" Asked Celeste. "Everyone should have known you can't lock any of the boys' bathrooms."

"The killer could easily make that mistake, thanks to one important detail about the scene of the crime…" Replied Kirigiri before looking at me. I guess she wants me to speak next.

So, the killer was convinced the bathroom door was locked, and they didn't know that the door actually couldn't be locked. In other words, the important detail about the scene of the crime was…

"The killer must not have realized that it was my room." I eventually said.

"What?!" Exclaimed Yamada. "Are you saying the culprit didn't even know where he was? That's… Inconceivable!"

"And yet, he's absolutely right." Said Kirigiri.

"SAYWHAAA!?" Screamed Yamada.

"Well, to be more specific…" She continued. What the killer didn't know was that Naegi and Maizono switched rooms, which is what lead to the misunderstanding about the bathroom. If Maizono had been in her own room, then…"

"Then there would have been a lock on the door, and they would've had to break through…!" Finished Ishimaru in shock.

"So they had no idea how unnecessary their actions were…" Mused Sakura.

"Ultimately, we can't know if it came open by force or simply by accident, but the killer must have been considerably confused with no idea how they actually got the door opened." Explained Kirigiri.

"Regardless, it was a pointless act." Stated Togami. "Wasting time trying to break down a door that wasn't locked is…"

"…Definitely something I wouldn't do, since I would've known exactly why it wasn't opening. Right?" I explained.

Togami sighed. "That is… A definite possibility."

"So the killer would have to be someone who didn't know they'd switched rooms…?" Asked Chihiro.

"Then Naegi c-couldn't have done it…!" Said a disbelieved Fukawa.

'That's what I've been trying to tell you…' I thought in frustration.

"Okay, then who did do it!?" Demanded Mondo.

"I'm sorry, but I give up!" Yamada said in a bold voice. "Quit without saving!"

"But…" Began Chihiro as she nervously looked at Monokuma. "What happens if we can't decide on who we think did it…?"

"Well then, why don't we just vote right now?" Suggested Ishimaru. "Majority rules!"

"Majority rules?" Questioned Leon in disbelief. "Do you really think that's a good idea?"

"Yeah!" Agreed Hagakure. "Our necks are on the line here! Someone seriously needs to do something. For serious…!"

"Does no one have any thoughts or questions?" Asked Celeste. "It does not matter how trivial they may seem…"

"Oh!" Gasped Asahina. "As a matter of fact, I do have one question!"

"Oh… You…" Sighed Celeste. Asahina didn't like that.

"You don't gotta sound so disappointed!" She exclaimed.

"It's fine, it's fine, just ask your question!" Said Ishimaru.

"Oh yeah! Okay, so, umm…" She stammered before asking something I never would've thought of. "Well, I was just wondering, how'd the culprit get into Naegi's room in the first place?"

"Hmm… Yes, how did the killer get inside?" Asked Sakura.

"Maybe Maizono just dropped the key somewhere and the culprit picked it up." Assumed Leon. "That's possible, right?"

"I don't think so." Replied Ishimaru while shaking his head. "That seems way too convenient."

"Then…" Began Chihiro. "Maybe someone picked the lock?"

"Negative!" Disagreed Ishimaru. "If you remember, Monokuma made it quite clear that the locks are all unpickable."

"Fine, how about this?" Began Yamada. "The killer got in the easy way. They could've knocked and said they wanted to talk or something, and Miss Sayaka just… Let 'em in!"

"No, that can't be it, either." I said.

"O-ho!" He laughed. "Trying to argue against me? Sounds like someone doesn't know his place! Hello!? Why, exactly, can't that be it!?"

"Because Maizono was already scared, remember?" I continued. "That's why she asked me to switch rooms in the first place. I told her that, no matter who it is, she should never open her door for anyone. And even if she's absolutely sure it was me, she wouldn't open it. Knowing what she'd been through, I just can't believe she would have opened the door for anyone."

"…What if being scared was a lie?" Asked Kirigiri suddenly.

"Huh…?" I gasped in disbelief before getting angry. "Wh-What the hell is that supposed to mean?! Why would she lie about something like that?!"

Before she spoke again, she pulled out a shaded notepad with something written on it.

"I know you don't want to consider it, but look at this and tell me; can you still deny the possibility?"

I leaned in closer to read the note. What it said absolutely shocked me:

"There's something I want to talk to you about, just us two. In five minutes, come see me in my room. Check the nameplates to make sure you don't get the wrong room, okay? Maizono."