Nagisa's POV

The explosion made us all fall into the water.

"D... Did we get him!?"

"This is clearly different from our previous assassinations!! Koro-sensei exploded, and now... There's nothing left of him!! It feels like we got him!!"

Karasuma-sensei and Bitch-sensei came running to us. "Don't let your guard down!! He has regenerative powers. Kataoka-san, you take point and keep watch of the water's surface!!" Karasuma-sensei said.

Kataoka-san replied, "Got it!"

After a few minutes of searching, Kurahashi-san saw some bubbles from her boat. "Ah."

"Hey." Sugino-kun pointed towards the bubble. They all aimed their guns.

"In that instant, what we saw, was Koro-sensei's,"

Then, a sphere with Koro-sensei's head in it came floating up.

"Strange round form, which was clear and orange, with his face inside of it."

"What is that?" We all thought.

"This is," Koro-sensei started. "The last of my last resorts. The ultimate defensive form!!"

The ultimate defense form!?

"While I am in this form, I am truly invincible!! Water, anti-sensei material, and all attacks will be returned by this crystal wall."

"...No way. Then, if you stay like that, we won't be able to kill you." Yada-san said.

"Actually, it's not that simple." Koro-sensei answered. "This energy crystal... It naturally collapses after about 24 hours. At that moment, my flesh expands, and it absorbs the energy to return to its previous state." He explained.

"But on the down side, during the 24 hours before the crystal collapses, I'm completely incapable of any movement."

He got us... It's our complete loss!!

Terasaka-kun scoffed, "Tch. Invincible my ass. I'm sure we can figure out a way to destroy this thing. He grabbed Koro-sensei and started hitting him with a wrench. "Nurufufufu, it's useless. Even a nuclear bomb wouldn't leave a scratch."

Karma-kun took his phone out of the bag Kaede's holding, "I see~ I guess there's nothing we can do if there aren't any weaknesses." He showed his phone to Koro-sensei.

It showed a picture of him reading porno magazines. "Nyaah!!"

"Stop- I don't have any hands, so I can't even cover my face!!" He exclaimed, blushing.

Karma-kun smirked, "Sorry, sorry. Then, let me put it right in front of your face..."

"You're not listening at all!!"

"Let me leave this sea slug I found right here." He left a sea slug right on Koro-sensei's face. "Funyaa!!"

"Can someone find a dirty old man~ I wanna stick this in his underwear." Karma-kun said, smiling. "Koro-sensei looked terrified, "Help me-!!"

Kaede said, "...There's no end to his bullying, is there?" I answered her, "...Yeah. Karma-kun's a master when it comes to this stuff."

He turned to me, "Hm? Then can you call me "Master" then?" He said playfully. I smiled, "No thanks."

After that we put Koro-sensei in a plastic bag, and went back to our hotel to have a little break.

I sat with Karma-kun in a table. He didn't drink the drink we were given, instead he put a straw in his mouth. "Not gonna drink, Karma-kun?" I asked.

He answered, "Nah."

"Man, I'm beat..." Maehara-kun said, leaning lazily on his chair. Mimura-kun looks just as tired, "Should we just go in our rooms and rest...? I don't have any energy to do anything else..."

Terasaka-kun looked at them, "What's wrong with you guys, getting all depressed after failing once? We did everything we planned to do, so let's just kick back tomorrow."

Okajima-kun smiled, "You're right... Tomorrow, I'm gonna take my time and watch the girls in their swimsuits..."

I stood up and looked  at them, "...Something's odd." Even Kanzaki-chan looked really exhausted. "No matter how you look at it... Everyone's way too tired."

"Hey, Nagisa," Rio-chan said. "Can I lean on your shoulder for a bit...?" Suddenly, she fell to the ground with no energy left to stand.

She continued speaking, "I wanna go to my room and get changed already, but my body won't move at a~ll..."

I bent down, "Rio-chan!!"

Okajima-kun said from behind, "Man... Just from thinking about it..." I turned to him. He was holding his nose, which has blood gushing out. "My nose... Wait... What..."

"Okajima-kun!!"

I looked at everyone. They all looked exhausted and were either knocked out on their chairs or on the ground trying to stand up.

Karasuma-sensei grabbed the plastic bag containing the crystalized Koro-sensei and went to the receptionist to ask for a hospital, but he said that there are only small clinics here.

"What in the world is..." I said, looking at everyone. "It's probably the drinks." Karma-kun said. "Good thing you didn't drink it."

I looked at him, my eyes full of worry. He pat my head, "Don't worry."

"Who is this?" Karasuma-sensei said from behind us. He was talking in a phone. "Are you the one behind this?" He said in a serious tone.

We heard a voice from the phone, "It's an artificial virus. It's not infectious, but if it does infect you, it's over... After a week, every cell in your body will be stunted and you'll soon be dead."

Koro-sensei started sweating.

"What? Who is that?" I thought.

"Sorry to tell you this, there is only one cure. And unfortunately, I'm the only one who carries it. It would be a pain to go give it to you, so why don't you come get it?" The voice said.

Me and Karma-kun listened to him.

"You see the hotel on the mountain top, right? As a present, you can bring me the bounty in that bag."
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This is a Karmagisa fic I swear... T-T