I put the newly made fuin in my pocket and looked at Iruka Sensei. He was talking about warring clans period. What I heard made me glad I didn’t start in that timeline. After making sure there is still time until the end of the class, I started doing a second Special Explosion Seal.

“Now class, I hope you took notes since I won’t be returning this subject.” Then there was a silence.

I raised my head to look and saw that everyone is looking at me. I sighed, “I won’t help you with theoretical subjects.” Most of them just ahhed and moved to leave the class but some of them moved to protest but a shake of the head and a stern-looking to dealt with the headache before coming. I finished my second fuin.

I looked for Sasuke and saw him preparing to leave the class. “Hey, Sasuke.” He turned to me. “Stay back, I have something to show you.” He nodded and started waiting. Then I looked at Iruka who was walking toward me. ‘That’s better.’ I stood up, “Iruka-sensei.”

He hummed. “What is it, Arata-kun?”

I held the second Special Explosion Seal in front of him. “I managed to copy this fuin. I need to test it but I thought it would be better to do this with some supervision.”

He took the fuin from me and checked it out. Looking closely at it, trying to understand what it does. After a while, he shook his head and asked, “What does this do?”

I started rundown on what are the parts and what they do. I finish by saying “This is the Special Explosion Fuin. It’s awesome.” I looked around and saw we got crowded somehow.

Iruka sighed. “It looks like you know what you are doing but we can’t just put chakra inside this fuin. We need a specialist to take a look since this isn’t the standard-issue explosion fuin.”

“I can’t take it to someone else.” I pointed at Sasuke with my chin. “I got this from Uchiha Clan so I don’t want others to duplicate this without their consent,” I said while shaking my head. “What do you think Sasuke?”

As soon as I said that, everyone turned to Sasuke, Iruka included. Seeing the attention he gets Sasuke got red a little but managed to make out “It’s better if you don’t.”

I nodded. “See, Iruka-sensei? The seal doesn’t take much chakra anyway. Just five-thirds of my chakra. It shouldn’t hurt much even if it goes off early.”

Iruka sighed and bit his lip softly. “Fine. We will try this out in the training field. We don’t need pits in the academy backyard.” With that, he turned around and headed to the door. So held Sasuke’s arm and followed him with the others. We walked for a few minutes and reached the training ground with the natural dungeon. I looked at the boulder and sure enough, there was still a glowing leaf. Iruka took out a kunai bound the fuin the back of it, then turned to me. “How long does it take to blow up?”

I took out the copy in my hand and took a cursory glance at it. Since I didn’t make it with the intention of using it I didn’t know how to specify the trigger timer but the cursory glance was all I needed. I put my copy back in my pocket and walked beside Iruka. I pointed to a particular part of the fuin and said, “Guide some of your chakra here. Timer scales with chakra you put in.”

Iruka nodded and pushed some chakra on the paper. He then threw the kunai. Kunai thudded to a particular tree and we started waiting. After twenty seconds something hissed. Then I thought it was a dud but a millisecond later, there was a mighty explosion of flame. The flames raced towards us angrily but just a few meters before us, they hit something invisible and moved upward then behind, which created a fireball with two-meter radius. Iruka turned to me some sweat marring his forehead. “Did you say it wouldn’t be powerful?” While shaking the hand he threw the kunai with.

I motioned for him to calm down and walked towards the place explosion took effect. What I saw there was both horrifying and satisfying. Weeds were burnt on the area and the tree lost nearly a quarter of its mass. The tree was bending dangerously so I stood a bit away. Then I heard some kids exclaiming, saying things like ‘great’, ‘cool’, ‘wicked’, ‘meh.’ I shook my head at the last one and walked to an open-mouthed Sasuke. “Sasuke.” He turned to me from the area of effect and coughed once. I took out the other fuin and gave it to him. “Here, this is the timer. You need to push as much chakra as you need here from here, the storage fuin and it will start the timer.”

Sasuke nodded then frowned. “I think you should come too. It’s better if you tell my brother how to use these yourself.”

I sighed. “I think you are right. Where do you think he is right now?” Sasuke just shrugged. “Well, if you don’t know I will get back to the orphanage. He can find me there if he wants. Tell him in a week, I can increase the power of explosion by about 50%.”

Sasuke nodded again. “I will tell him that then.”

I nodded back and turned to Iruka, who was very patiently waiting for our discussion to finish. “Sensei, thank you for helping me. I wouldn’t be able to do this without you.”

Iruka nodded thoughtfully. “You did well on asking for my help but you misjudged the power of the fuin you made and that’s bad.”

I cleared my throat. “Um, sensei. I am not in trouble am I?”

Iruka chuckled. “Well, that’s not for me to say. Now you will make another of the fuin and we will go see Hokage-sama. He will decide if you are in trouble or not.”

I sighed. ‘Well, that’s another opportunity.’ I smirked then looked up and found Iruka looking at me oddly.