I was just...... I want to see you cry.

Don't be surprised. This kind of extremely wonderful declaration is said in public, and if anyone wants to be crooked, it is normal.

"If you want to apologize now, it's too late," Celes crossed her hands on her abdomen, a sneer running across her lips, "I think you're used to the fact that you often get things wrong." ”

"But the reality is quite the opposite, it's you who often get things wrong," I snapped, "for example, this time, is a typical example." By the way, kneel, beg for mercy, apologize, cry...... I can accept any way of pleading, but I will not spare the other person. ”

Cyrese chuckled, her expression serious again. He looked at me calmly and asked, "Let's get down to business." Listen to what you just meant, if Ishimaru-kun was electrocuted because he came into contact with the water that was energized in the art preparation room, then how high would I need to store the water level in the art room? ”

"It doesn't need to be too high, it's enough to reach one's knee position. You may say that you don't have time to store that much water, but you might as well recall, if you count from 12 o'clock yesterday at noon, who has been in the art preparation room? ”

Everyone was shaking their heads. Owada Wentu asked curiously, "There's something I don't quite understand. Why do you think that the woman started to store water in the art preparation room at 12 o'clock at noon? ”

The woman...... This word made me think about it for a long time before I realized that he was talking about Cyrus.

"It's just a simple arithmetic problem......," I wiped the cold sweat from my head, "a normal faucet, with the valve fully open, has a flow rate of about 0.4 cubic decimeters per second." 0.4 cubic decimeters per second × 3600 seconds = 1440 cubic decimeters = 1.44 cubic meters. The position of Ishimaru's knee is about 54 centimeters...... Hey, Black and White Bear, how big is the art preparation room? ”

From the moment he complained about the fog cut ring, until now, the black and white bears are dozing off. I shouted several times before he woke up from his dream, wiped his sleepy eyes, folded his paws, and thought for a long time before he raised one of his paws high as if he were cheering, jumped up from his throne and replied, "If you're talking about the art room...... It's about 30 square meters! ”

"Thanks," I nodded to the position of the black and white bear, pulled out the electronic student manual, and called up "computer" (I really admire the person who made this thing). How did he come up with the idea that so many features could be installed? "30 square meters should be equal to 3,000 square decimeters, and 54 centimeters should be about 5.4 decimeters." To do a simple calculation, in the art preparation room, if you want to store enough water to reach Ishimaru's knees, you need about 3,000 square decimeters× 5.4 decimeters = 16,200 cubic decimeters = 16.2 cubic meters. And as we said earlier, the flow of water from the faucet in one hour should be 1.44 cubic meters. 16.2 m³ ÷ 1.44 m³/h = 11.25 hours. Combined with the height of the pool and the water stains that spread throughout the art room, it should be left in for at least twelve hours. Of course, some of you may wonder if my testimony is conclusive......"

Kiri Hibiki took out an old brass watch with a belt from her shopping bag and threw it on the judgment table. Another photo appeared on multiple large screens behind us, a close-up of the watch hands on Ishimaru Kiyotatsu's wrist.

The glass of the dial has been shattered, and the watch itself has long since ceased to function. The pointer on the top points in the direction of twelve o'clock.

There is no doubt that this was certainly not broken at twelve o'clock in the afternoon, it should have been twelve o'clock in the middle of the night.

"You're good at math," Hibiko Kirikiri nodded, "Ishimaru-san was indeed killed at twelve o'clock in the middle of the night. Still have questions? ”

Nonsense...... I think I'm at least four years ahead of you in math. After all, what you learned in the third year of high school, I finished it in the first year of junior high school.

"But if the plastic tarp is attached to the inside of the door, how can the people inside get out?" Cyrus asked, "I don't think there's any other way to leave the art prep room without going through the door, right?" ”

"You don't need to stick the waterproof plastic sheet very tightly," I corrected, "just put the three sides on and squeeze yourself out of the crack in the door." As soon as the door is closed, the waterproof plastic sheet near the crack of the door will also be glued well. ”

"Woohoo. But there's a serious problem," Cyrus asked rhetorically, smiling, "of course...... If you beg for mercy and admit your mistakes now, you can still be spared a little bit. ”

Such a statement...... I always think it makes people think about it......" Yamada Ichizusan, who had been silent for a long time, finally spoke, "Could it be that the queen is planning to ...... the Onikawa Palace?" Wow yes! ”

I really want to hit you two......

"It sounds like you've found a flaw in your reasoning. Tell me, what is it? ”

"Look at this." Cyrese picked up her electronic student handbook and put a photo on the big screen. It was a photo of Ishimaru Kiyota's bedroom, and the photo showed a shoe closet, a neat row of black and shiny boots.

"Huh? The queen has a habit of observing other people's shoes up close......" Sensing that Cyrus was not good at his eyes, Yamada Ichitosan, Ichi, Two, and Three shut up.

"These are the shoes that Ishimaru-kun often wears in his shoe closet," Cyrus sighed, "I have to say, the black and white bears are really lazy." All the costumes are prepared with several pieces of the same style. But that's fine, we can use the shoes in Ishimaru-kun's shoe cabinet to compare what the shoes he wears look like. ”

"That's it? What can be compared? Owada turned his head around a few times, tilted his head to the left for a while, and tilted to the right for a while, and asked dissatisfiedly, "I don't see a problem." ”

"Ishimaru-kun's family is poor, so it shouldn't be possible to wear leather boots. But that texture is really very similar......" Celes glanced at me, "but it's a pity, Ishimaru-kun's boots...... It is rubber galoshes. ”

"Rubber...... Overshoes? Naeki Makoto's eyes widened in surprise, "...... when working electrician"

"That's right," Celes sighed, "the question is, how could Ishimaru-kun be electrocuted in shoes like this?" Can you explain? ”

"Kikiri-san, you should still have a wire, right?" I sneered and looked over to the side of the Kiri Hibiki, "Oh no, it should be two." But all I need is a bunch of copper wires. ”

Cyrus glanced at the people around him without a trace, and his expression froze when his eyes fell on the embarrassed Yamada Ichizusan.

Hibiki sighed and looked through the shopping bag next to her. After looking for a long time, she finally pulled out a long copper wire with a lot of splashes from the bottom of the shopping bag. On the big screen behind her, a photo of a copper wire lying at the bottom of the pool appeared.

"Thank you very much," I looked at the still bulging shopping bag for a long time, "This is the most crucial one among the chest weapons that killed Ishimaru-san." ”