Your POV:

Soon enough, we were given the Monokuma File containing the details on Ryoma's death. Everyone was chatting amongst themselves during the time.
I heard Tsumugi mention how someone killed another person. Maki even left the room to go to her lab. Some people thought it was irresponsible. It made me wonder what was so important there. Why wouldn't she let anyone go in there. It was a question that I had for awhile.
Kokichi mentioned that this happened at a *certain magic girl's performance*. I knew what he was hinting at, but would someone like Himiko be able to commit a murder?
This comment turned into a slight argument between Kokichi and Himiko. Himiko insisted that her act was magic, but Kokichi thought it was a trick. If we did figure out that trick, it could help us... I just wonder how we are going to do that.
Everyone actually agreed with Kokichi aside from Tenko. Tenko was so attached to Himiko, that she'd back her up till the very end. I envied that.
I slapped my cheeks with my hands . This was to get my attention focused on the important matter at hand. Investigating Ryoma's body. I had to do this. Even if I am scared, I still must.
I felt someone grab my arm, startling me slightly. I looked over to see Kokichi.
"What do you want Kokichi?" I asked.
"Well..." Kokichi trailed off, "I want you to join me for investigation!"
I looked at him with a slightly shocked look. I didn't even know if I could investigate with him.
"It looks like you already have someone with you... I'm just going to go with Rantaro instead," I replied, trying to be as nice as I could.
Suddenly I felt a surprisingly strong grip on my shoulders. Kokichi was the one with this strength.
"What does he have that I don't!?" he shouted at me, "why is it always Rantaro!?"
Kokichi was shaking me as he was saying this. His outburst really shocked me. He normally would lie, but he didn't seem like he was lying. I felt really bad about this... but it seemed like this was some sort of soap opera skit.
"Can you calm down?" I asked, "how about this. You let me investigate with Rantaro, and tomorrow we can hang out all day."
Kokichi seemed to think about it. He took a second, looking down.
"Fine. You better keep your promise... I hate liars..." Kokichi muttered.
I smiled lightly as he let go of me. I walked towards Rantaro.

Kokichi's POV:

"You will be mine (y/n)... I'll kill Rantaro as many times as I need to to ensure that happens," I muttered as she went to see Rantaro.

Your POV:

"Hey Rantaro!" I called out, "you want to investigate with me?" I asked.
I looked at Rantaro with a smile. He seemed to smile back at me when I asked that.
"Sure, I don't mind. Let's just say you aren't the only one who's observant," Rantaro replied with a slight chuckle.
    Soon, Rantaro and I were called out by Kaito. Kaito straight up told me that Shuichi and I were his sidekicks. Kaede came along with us too. We found out this was going to be a pretty big investigation group.
    Kaito told Shuichi and I not to be scared to reveal the truth. It made me flashback to the training we had outside a couple of nights ago. Shuichi and I were both terrified, but we wanted to get stronger.
    "Let's check the Monokuma File already," Kaito told us.
    "U-Um...ok..." I muttered in response.
    I took a look at the Monokuma File. Everyone in the group did as well. I took a moment to carefully read what was on the tablet file.

The Victim is Ryoma Hoshi, the Ultimate Tennis Pro... The body was discovered in the gym. The cause of death was drowning. His body was consumed by piranhas until only bones remained. No other injuries can be confirmed at this time.

    "There's less written here than Rantaro's File," Kaede explained with a serious look on her face.
    "Now that Kaede mentions it, I notice it too," Kaito replied, "I've gotta bad feeling about this."
    "The time of death isn't here," Rantaro explained with a slightly dark look on his face.
    "I already noticed that..." Shuichi said nervously.
    "Ditto..." I muttered.
    "The previous Monokuma File indicated the time of Rantaro's supposed death, correct?" Shuichi asked.
    "I didn't investigate Rantaro's supposed death, so I have no idea," I replied.
    Shuichi and Kaede concluded that this was intentional. I'm sure if the time of death was revealed, it would reveal the killer. Of course Monokuma wouldn't make this easy for us. The *Time of Death* would be the key to this case for sure.
    There was one more thing in this Monokuma File that caught my eye. That was the *Cause of Death*. It said in the Monokuma File that he drowned. It was a weird thing to see, hr maybe that's a clue on the time of death. The cause of death could help unravel this case.

   •Truth Bullet Added: Monokuma File 2•

    Once we got done reading the Monokuma File, Kaito ordered us to investigate every area that could lead us to the culprit. So far, the only places I could think of was here and Himiko's Lab. We would obviously need to find out the secret to Himiko's Act. That would be the purpose of going to her lab. For now, I should investigate here until I find everything that's relevant for the case.
    We all decided to take a close look at the water tank. The tank was obviously cracked and in bad condition. Kaito complained that the tank was broken, but Shuichi explained that we would t be able to investigate Ryoma's body if we didn't break the tank. It was a lot to clean up, but at least now we can investigate the body.
I took a look at the glass surrounding the tank first. All of the glass was piled up. Everything was in tiny pieces. T was obvious that Tenko and Gonta didn't show any mercy to poor Keebo when they threw him into the tank.
I took a look at Ryoma's body next. I felt myself get slightly sick from just looking at it. He was just a skeleton now. He was reduced to almost nothing.
"Is that really Ryoma?" Kaede asked.
"It would seem so," Rantaro replied, "we all saw what happened. This is really what's left of him."
"In all honesty, I can't believe it's him. I didn't see what happened, so I don't know what you all saw..." Kaito replied.
"The water was filled with so much blood that we didn't see the whole thing thankfully," I explained, "I'm certain that this is Ryoma."
"Geez, I know he wanted to die, but he didn't actually have to go and do it," Kaito said.
"No...I don't think that's right, Kaito," Shuichi told him.
"I agree. He was murdered. It's not like he committed suicide," I explained.
Shuichi and Kaede explained that Ryoma was jealous of us. I agreed with that because I knew he wanted to join us. That's why he wanted to look for a reason to live. This further proved my point on how Ryoma couldn't have committed suicide. We found his belongings too.
We saw the key to his room, his Monopad, and his clothes. Perhaps we could investigate his room later. That should be the plan.
We needed to check out his motive video. Whatever was on that video must be the key. What was his motive? What did he have to live for? That's what we needed to find out, one way or another.
There was another possibility... This was the case if he didn't have his own motive. He could've been killed because of a motive video for someone else. If he didn't have his motive, we needed to find out who had his video. That person would most defiantly be the prime suspect.
I knew I'd be clear of suspicion. I had my own motive video, and I told everyone about it so I wouldn't kill. I was honestly glad I made that choice.
Hopefully he didn't have Rantaro's either. If that were the case, Rantaro would be a prime suspect. I didn't want to think that Rantaro could've killed Ryoma.
I looked at the bucket of piranhas next. Something looked very odd about them. I could've sworn there many of them in there. It seemed like there was less than what I saw in the tank.
'How could this be possible?' I thought.
"What are you thinking about (y/n)?" Rantaro asked.
"Well... it kind of seemed like there were more in there during the magic show," I explained.
"How could you know that?" Rantaro asked.
"Hey! It's a feeling! I have a photographic memory like Sheska from Fullmetal Alchemist!" I exclaimed.
"Alright, Alright," Rantaro laughed in response.
With that, we continued investigating. We investigated the rest of the gym with ease. We took note of handcuffs, a pane of glass in the tank. There was a ladder and rope on the back of the stage, and we even received a couple of alibis from people. Also on the back of the stage was a wet staircase that was next to the tank.
It turns out Kokichi took so long because he ran into Kirumi at about 9. He played tag with her until about 9:30 or 10.
We also asked Gonta about what he saw on the back of the stage. Gonta also told us about the Insect Meet and Greet. He couldn't get Miu because of her "secret woman weapon". It made me feel bad for poor Gonta. He didn't deserve to see something like that.
Everything was going smoothly when we finished investigating the gym. We got a lot of information about what could've happened.
The next place we investigated was Himiko's Lab, where we found a water tank identical to the one she had on the performance. We noticed an escape hatch to the tank. The placement of the stairs on the tank used in the gym would be right where the escape hatch is. That was one of the secrets to Himiko's trick. She used an escape hatch to get out of the tank. That was something really interesting.
That was the only thing we needed to discover from Himiko's Lab. The next place we needed to see was Ryoma's Lab and the pool. One thing I noticed in the gym before was strange markings on the window girder. I wondered if there were more marks like that in those places.
Once we got to Ryoma's Lab, we noticed a few things out of place. The tennis net looked very flimsy.
Before we investigated that, we went into the bathroom. It looked like a prison set up. There were handcuffs on the wall. One was missing. It was obvious the killer was here.
We also noticed the same marks on the window as the gym. This was oddly suspicious to me. I had no idea what could've been used to make these marks.
After noticing that, we left the bathroom. Kaito tripped on some sort of cable. It seemed like it came from the tennis net. We also noticed the pool was across from the gym and Ryoma's Lab.
The last thing we investigated was the pool. We noticed rope, an inner tube, and black fabric or trash in the pool. This struck me as odd, but I thought they were all connected.
Everything would eventually connect to who the culprit was. I hoped that was the case. We could avenge Ryoma.
My eyes widened when I heard the chime of the bell. It was time. It was time to figure out who murdered Ryoma. Who made it so I could heal him.

I'm sorry this chapter sucked. I'm on a time budget. I had to condense the investigation to fit the chapter. I work during the week now, so updates are harder for me to produce. I really hope you understand. I hope I got everything. I hope I can update this week. Ciao ;-;- CRUSIFIXdroid.