>>9700
Whatever it's just a piece anyway.
Maasaki was killed by inhaling carbon monoxide. Yukari was also killed that way assuming the bruises didn't kill her first. Once they entered the room the gas was leaking out and after the door was locked from the inside a simple flick of the lighter would set the room a blaze.

>>9701
"Sorry. The gas was not leaking when the two entered the room. Furthermore, while harmful carbon monoxide was ingested by both of them, it was not harmful enough to kill them."

>>9702
Ah I see. How about this?
They died from inhaling gases from the burning plants.

I wonder if that still counts for the first theory.

>>9703
"...Burning plants? How ridiculous! You read the labels of the plants yourself! Isn't it obvious that none of them could release such a gas upon being burned?!"

>>9704
Yes I read them, so I know that nerium oleander is in fact poisonous.

Therefore the theory still stands.

>>9706
Azami flinches. "W-what?! That plant was in there?! Sumireeeeee!!!"

"I'm sorry, big sister, but his theory is right! I thought it was a clever trick, so I, I..."

The two Youkai sob uncontrollably as a giant thistle spikes up from the ground, impaling them both. They both burst into bloodstained petals, blown away into the wind.

>>9707
...Four Youkai remain.

Renoir steps forward, about to present his mystery, when suddenly...

>>9708
[ http://tindeck.com/listen/lrsh ]

"Uryu~! I really don't like fighting, but I'm taking Hameln's place! Explain it! The death of Hikaru, and the transformation of Michiru and Tomoko into bunnies!"

"...Wasn't expecting you. Oh the wonders of mass production.
Anyway, what mystery?

The culprit simply killed Hikaru and the other girls ran off doesn't have to be in order. Either the bunnies came back to the dead boy who took care of them or the culprit placed them there.

>>9710
"...Simply killed? The moment Hikaru was killed, he was the only human inside the backyard of the school. It shouldn't be possible for a human to kill him, uryu~!"

>>9711
Like I said simple.

Ranged weapon.

Next.

>>9713
"...!!!"

Upon hearing those words, Sakunoshin explodes. His insides spread all over the ground.

>>9714
"...You really showed that lion no mercy... Still, it was a pathetic closed room.

Explain it! The death of Marie, trapped inside my portrait painting!"

>>9715
"Give me a mystery first. I already said so in-game;With no body there is no closed room. That much is obvious. At the very least can you confirm that the 'blood' is Marie's? Or even real? That way there may be some sort of mystery to call your own."

>>9716
"The body is the portrait! Marie really is inside that painting! That blood was in fact Marie's real blood, too! How many Youkai can truthfully say in red that they have used magic on their victim?! This is my victory!"

>>9717
"Seems to can't say anything about her actual body. That coupled with the fact you keep trying to announcing your victory... well at least you release yourself how bad your closed room is.

Let's try the first theory.
When I was unconscious one of my keys was used to lock the room.

>>9719
"Pfffthahaha!! Did you already forget?! During this entire game, once a key had gone into Ozaki's possession, it never left without his knowledge! You must've just gotten lucky on those last two!"

>>9720
Oh... well shit. I forgot to check that red. I even made a note to check it before posting... I guess I did get a bit careless, but lucky? There is no such thing.

The room was set up before Marie had died. The portrait was painted before and the blood was taking from a day when Marie had her blood being tested. The door was locked before I even gained possession of all the keys.

>>9721
"Wrong! The closed room was created after Marie's death! Are you ready to surrender?!"

>>9722
"Deny the rest. Some of those still can used regardless of the time of her death."

>>9724
"If they can be used, then explain so. I don't see how, considering the contradiction. If the door had been locked before you got the keys, then how did Marie enter the room?"

>>9725
"Who ever said Marie entered the room? The red doesn't mean Marie had to be in the room, just that she was a subject in the portrait. Not to mention only her blood was found since you keep neglecting to mention anything of her actual body. An opening or crack could have transported the blood into the room.

Not to mention the main part is that you think that would deny my theory. Using the same methods the closed room could have been created while Marie was still alive.

>>9726
"Marie definitely entered the art room!!! And she was indeed physically inside the room when you found the portrait! There's no denying it, Ozaki!"

>>9727
Alright I'll try this.
Third theory
Acid was used the dissolve the body. All that was left to be seen by the naked eye was the blood. The door was locked from the inside.

>>9728
"Marie did not lock the room herself! And she was not dissolved by acid; it had nothing to do with her death! Ahahaha!!!"

Renoir pulls out a paintbrush from inside his coat, pointing it at Ozaki. Suddenly a swarm of portraits come flying at him faster than he can react. Most zoom straight past, but one makes a direct hit on his right leg, slicing it off!

Renoir whips his paintbrush around again, and the leg comes flying toward him. Ozaki falls to the ground, supporting himself with his remaining arm.

>>9729
...And thus, four Youkai still remain.

The Headmaster steps forth.

"Ozaki! Are you prepared to face off against the highest-ranking Youkai?! Explain it! Your own death, at the very end, when no human is left to murder you!"

>>9730
Here I thought you were just going to stand around for the whodunit. I had forgotten about my own death. Let's try out the simplest answer.

Ozaki was murdered. He was killed by one of the 16 humans who had come to the club meeting. They faked their own death using a real corpse. Similar to how I used Takeshi's corpse in order to fake mine.

>>9731

[ http://www.youtube.com/watch?v=HuIU5-6B_fQ ]

Kanamori did not fake his death.
Aya did not fake her death.
Midori did not fake her death.
Reiko did not fake her death.
Yuuki did not fake his death.
Shuichi did not fake his death.
The Nurse did not fake her death.
Takeshi did not fake his death.
Yoko did not fake her death.
Yukari did not fake her death.
Masaaki did not fake his death.
Michiru did not fake her death.
Tomoko did not fake her death.
Hikaru did not fake his death.
Marie did not fake her death.

And Ozaki did indeed fake his death.

That amounts to 16 people. All dead."

>>9732
As expected. It all fits perfectly. I know who the culprit is.

The culprit faked their death alright. However they are not on that list. They faked their death before I even arrived. They then took the place of one of 16 names you just listed off.

This is my answer!

>>9733
A blue line flies out from Ozaki's fingertip, straight into the Headmaster's eye.

"That's... that's... correct..."

The old man is then wrapped in an intense light, and is destroyed from a bright blue explosion.

>>9734
...Three Youkai now stand.

Higanbana grins. "...Even after killing the Headmaster... There are still unsolved mysteries. Shall we begin Round 2?"

"You act like that is a problem. Alright Higanbana back to the first closed room!

The key was placed into the room after I had unlocked the door."

>>9736
"...W, wait, n-n-nooo!!!"

After muttering her final words, the youkai of death begins to bleed profusely.

On the ground, the blood reads CORRECT.

The red truth soaks out of her, even when she refuses to admit defeat...

>>9737
Finally, the girl evaporates into nothing, and only two youkai remain.

>>9738
"That's a shame. She was the only one of you I could have a decent conversation with, even if I was just me insulting her. Anyway, let's go back to Renoir's room.

Marie had died before I even arrived at the school. Therefore my theory about the door being locked before I gain possession of the keys still stands.

>>9739
"Ghh.... I hate to admit it, but you are right...!!!"

The moment Renoir says that, his body falls apart into shapeless blobs of color, dissolving into the air.

>>9740
Only one Youkai remains. Izanami.

"...So this is the final battle, eh? As I expected, the others were little challenge to you. You've struggled with my closed room the moment you saw it, haven't you?"

>>9741
"Heh, I won't lie; I did have some trouble with it. However I believe I now know the reason why I struggled so hard. In any case, I have six blues in total left and I have already investigated the crime scene to no end. Even if I lose a limb here I'm confident I can solve it.

Let's finish this.

The Nurse's key works on more than the infirmary door.

>>9742
"Yes, that's right. Well done."

All that remains is Ozaki, fallen in an empty field. With one arm remaining, he has solved all of the howdunnits.

[ http://www.youtube.com/watch?v=2XufQZ9oBZs ]

The clouds part, and from a single opening comes Kinjo, gently falling into the field of higanbana.

"Ozaki, congratulations on making it this far, succeeding where I have failed. But we both know that this is a game between the two of us, so the conditions of the Youkai are not the same as the win condition. I don't just want you to solve the howdunnit. You need to answer the whodunnit as well, in order to fully solve the game. Considering you have indeed solved the howdunnits, it should be simple enough for you to tell me. I'm ready when you are."

>>9744
"You are right, the whodunit is considered the most important part of the mystery. It must be revealed.

The culprit to this sad tale is none other than... Ushiromiya Maria.

>>9745
"Please, go on. Solve the whydunnit too, for a full victory."

>>9746
"You got my hopes up, to be honest I feel the whyduiit is covered in uncertainty. I can only grasp at the straws but here is my best shot.

The motive is revenge. Everyone knew about what was going on with Kinjo and Maria but they just let it be until she took action herself. She decided to get revenge on everyone who she felt had wronged her. Both the people who bullied her and the ones who simply ignored the incident. This is why I was left to the end because I had yet to do anything mean to her.

>>9747
"So in other words, you're saying that Maria killed everyone because they had wronged her or had done something bad to her, then?"

>>9748
" It's possible that it could have been a friend who was hurt and she decided to act on their behalf, however as I said I'm uncertain but I will reiterate;

Yes. In one way or another that's what I believe to be the motive."

>>9749
"Those are two different theories. Was it for her, or a friend, and who would that have been, and why?"

>>9750
"You are literally killing me here Kinjo. I'll go with the theory that is was for herself.

>>9751
That answer is ______________

>>9752
That answer is mostly correct.

The game is over. Maria is the culprit, and she killed everyone to redeem Kinjo's name. There was more to the backstory that Ozaki didn't say, but this was close enough.

As you can expect I'll be making this into VN format as well. It might take a while, though.

The winner is Ozaki. But I have redeemed my name. I still have to post every Sunday, though, for 3 months.

Good game, Ozaki. Let's do our best together in anon's game.

>>9753
"Kinjo has revealed the answer to me in depth and I agree that my solution is mostly correct. I was rather vague and despite making a even more correct theory didn't use it. In the end it wasn't as bad of a mystery as I thought.

After getting over the characters and plot I had fun. You can take your name back, this was better then the game you set to redeem yourself from. Thank god it was never seen by seacats.

Good game Kinjo. And yes, let us start to prepare to for anon's game.