The next day, Bakorio was granted an elite Jonin rank, as well as a teaching permit from Fugaku and no one dared to complain when he was supported by every large clan in the village…

'Who would have thought, I would end up becoming a teacher once more…' Thought Bakorio getting reminded of his past life, he used to be a businessman, and he ended up doing many seminars, especially in the later parts of his life, but in reality, he only did them because he enjoyed teaching his grandson his ways…

'I wonder how's he doing after I left him as well…' Thought Bakorio with a sad look on his face before he quickly shook his head and opened the door in front of him, it was the door to the classroom he was supposed to teach and he of course insisted on being assigned to the best classroom with Naruto and Sasuke in it…

The classroom was chaotic as you would expect from kids and it was even more chaotic after Bakorio entered and the students were a bit surprised since they weren't expecting him

"Hm? Where's teacher Ibiru?" Asked a little kid and the others had the same question in their heads other than Naruto and Sasuke who knew about this and remained silent in their seats…

"Silent" Said Bakorio coldly making the students shiver slightly with how stern he looked while some of the girl's eyes started shining slightly while staring at how handsome he looked before he said "I'm your new teacher Bakorio Uchiha, I will be responsible for your Ninjutsu and survival training from now on"

The students gulped slightly while those that realized Bakorio's identity like Shikamaru and Sakura were startled by the huge changes to his body… However even they were scared slightly when getting stared at by that pair of active Sharingan…

"Any questions before we start?" Spoke Bakorio and one of the students, a girl gathered her courage and asked "What happened to Ibiru sensei?"

Bakorio glanced at her and said calmly "She was transferred to teach a different class"

The little girl nodded hurriedly and sat back down on her seat…

"Now then let's start the lessons" said Bakorio before he leaned on his desk casting a huge shadow on the students and said "Who can here explain to me what is Ninjutsu?"

The students remained silent before Sakura stood up and said "S-sensei, Ninjutsu is the way to manipulate chakra and use it to achieve multiple effects"

Bakorio nodded at her and asked her "Then do you know what chakra is?"

Sakura hesitated slightly and said "I'm not sure, I only know that we are born with it but it's usually dormant"

Bakorio was asking these questions to assess the student's knowledge and after having confirmed their level with a few more questions, he let out a sigh and thought 'Other than Naruto and Sasuke, I will have to basically start from zero with these kids… But it shouldn't be that hard'

After having decided on a teaching plan, Bakorio instantly started teaching the students the basics of chakra and how to use their imagination to make it easier for them to manipulate it and what not and he spent a few hours cramming this knowledge inside their heads before he said

"Tomorrow there will be a test on what I taught you today, if someone gets a score below 50%, they will be expelled from the academy. You are dismissed now"

"expelled?" The students were startled and some of them instantly regretted not writing down what Bakorio taught them.

"Hmph, I'm from the Arima clan, you can't expel me, it's against the rules of the academy!" Spoke a chubby little kid with brown hair that appeared like a side character and Bakorio simply shot him a look and said "You better use that good memory of yours that helped you memorize the rule in the test tomorrow or your puny clan won't help you, Fatso"

Then Bakorio left and went back home since his shift was over…

"Who does he think he is?" Spoke the Arima kid prompting a glare from Naruto as he said "Oy Akari, you better watch your mouth?"

"NANI?" yelled the Arima kid and a fight soon ensued…

….

Bakorio didn't care about all of this, he was only thinking about his purpose in wasting his time on all of this… Since he decided that it was best to get help in facing those four bastards and the one behind them, he had to get a literal army, and what better way there is other than building it from the population of this world.

However, he needed to have a good teaching system, which is why he decided to experiment in the ninja academy first…

….

When he went back home, Bakorio dispelled the many shadow clones he created before going to the academy and gained their knowledge and progress

'I need to improve this Jutsu, it's not enough anymore for me… the shadow clones can't create chakra, at best they can absorb nature's energy, but that thing can only make them last a bit longer since it raises the quality of their chakra but not by much… and they spend a lot of it when training especially in things like sharp release… I need to create better clones, clones that could last longer. However, that will require them to have real bodies…'

Bakorio frowned slightly as he contemplated in his backyard and Kushina couldn't help but approach him and sat beside him while offering him some tea and asked "What's wrong Bakorio-kun, did something happen on your first day teaching?"

Bakorio took the tea from her and responded with a smile "Thanks, and no, the teaching went perfectly, I was just wondering if there was a way to improve on the shadow clone Jutsu and maybe make it last indefinitely"

Kushina pondered slightly and said "The shadow clones are formed from a perfect use of transforming chakra into physical and spiritual energy that takes the shape of the user and even connects the clones to them spiritually… So, the only way to keep them active is by pumping your chakra into them, that's how it has been since the moment they were created"

"Indeed…" Responded Bakorio with a lost look on his face and Kushina tried to cheer him up and said with a smile "I'm sure you will find a solution, let's ask Minato later"

Bakorio nodded at her with a smile and kept thinking 'Wood release clones can even allow Madara to use the smaller version of Susanoo… they are special, maybe they could even regenerate their chakra but why is that? was is it because they are the combination of three attributes?'

Indeed, Bakorio discovered that wood release was a combination of earth, water and the Yang release that made Hashirama's body special, and he couldn't help but suspect that the addition of that yang release is the reason it could have such a special property…

Suddenly, Bakorio gulped down his tea and said to Kushina "I'm going to try something, step away please"

"hmm?" Kushina was surprised but she nodded at Bakorio and watched curiously what he was trying to do, but she only heard him muttering "Dust release: Clone Jutsu" Before she fell in deep shock as she watched a white light covering Bakorio's body before he fell to the ground with blood spilling from every pore of his body…

"Bakorio-kun!"

'Well, that was a total failure' thought Bakorio as he used the remainder of his strength to cast a recovery spell before he fell unconscious face first in a pool of his own blood…