Growth

I do not own One Piece and BNHA! ALSO! this is my first story so criticisms are fine uwu

"Luffy best boi" - Talking

"Luffy best boi" - Thoughts

Luffy best boi - Sentences

"LUFFY BEST BOI" - All Might Muscle Form, Anger

U.A Principal's Office

"So Principal Nezu, what should we do now that the Internships are over? we haven't found a single clue too where the League and All for One is hiding..." All Might frantically asked to the Furry Principal

"I think we can rest easy for now Toshinori... The League had lost some of their manpower and they won't be able to move for a while and will continue to hide so there's really nothing that we can do about it" Nezu replied to All Might who tiredly sighed at this before nodding "You don't have to be anxious anymore All Might, Nana Shimura's Grandchild is in our safe hands now, and we'll make sure that All for One won't be able to touch him again." Nezu pensively added which removed the doubts and anxiety that All Might is feeling before grinning again

"I see! that's really reassuring Principal! by the way sir, have you heard? Young Luffy will be Training the Young Midoriya, Bakugou and Todoroki and they're asking if they could gain access to the Gym Gamma to Train there." All Might said which piqued the Interest of the Mouse Dog Bear Principal as his eyes glinted

"Oh? then you can tell them that I granted Permission for them so they can use it Toshinori and I am really interested on this so I'll be observing their Training whenever I'm free... HA HA HA!" Nezu cheerfully said as he started to spin on his Office seat while laughing maniacally, All Might just sweat dropped at this before nodding and left the Furry Principal alone

"REALLY?! THAT'S GREAT!" Luffy happily said with a huge grin in his face as he heard the news from All Might, Izuku breathed a sigh of relief, Bakugou grinned in excitement at this while Todoroki had a contented smile on his face

"YES! Principal Nezu gave a YES! for you Kids to use the Gym Gamma for your Training!" All Might loudly exclaimed with a Thumbs -up

"HOORAY! Now that we have a place to Train, Let's go already!" Luffy said as he grabbed the Three Kids and started to ran out of the Dorms but was stopped by All Might

"Wait a moment Young Luffy! we have to talk about their Internships first!" All Might said

"Oh, I see! then I guess I'll head first there! see ya there you guys!" Luffy happily said as he let the Three go before continuing to run out of the Dorms to go to the Gym Gamma, All Might waved good bye at the Straw Hat wearing man before turning his attention to the Three

"So, how did your Internship with Endeavor go?" All Might curiously asked to the Three

"We learned a lot from him All Might! and you're right, Endeavor really changed! I was so surprised that I thought I met a different person!" Izuku happily exclaimed while telling his stories to his Idol while All Might just looked at his Successor with Fatherly eyes

"And then we-!" Izuku was still happily talking to All Might when he was Interrupted by a loud shout

"GAHHHHHHH, FUCKIN NERD CAN YOU CAN STOP ALREADY! YOU'VE TOLD HIM ENOUGH! LET'S JUST GO TO SHITTY STRAW HAT AND START OUR TRAINING ALREADY!" Bakugou said while letting explosions in his palms

"O-oh! you're right Kacchan!" Izuku said as he apologized to his Childhood Friend before turning to All Might again "All Might, I will continue to get strong and train hard so I can make you proud! so please continue to watch over me!" Izuku confidently exclaimed to All Might before running out with his Two Friends out of the dorms, All Might was frozen still at his Successors declaration before smiling

"Of course, Young Midoriya..." All Might fondly thought as he stared at his Successor's retreating back

Gym Gamma

"OH! SO YOU GUYS ARE FINALLY HERE!" The Three Students then arrived at the Gym Gamma and they heard a excited shouted that belonged to the Straw Hat wearing man as he saw them

"Of fucking course, Straw Hat! NOW LET'S JUST START THE TRAINING! WE WASTED SO MUCH TIME BECAUSE OF FUCKIN DEKU!" Bakugou angrily yelled at Izuku who flinched at the boy's glare

"Nope! we're not gonna start Immediately! I gotta tell you guys what Haki is first!" Luffy said to them with a grin, Bakugou seemed Interested at this and turned quiet, which made Izuku breathe a sigh of relief, while Todoroki silently looked at Luffy full of curiousity

"Law-sensei pretty much explained to me already what Haki and the 3 types are but I'm really interested at Luffy-san's explanation so I gotta write it down!" Izuku thought as he bought out his Notebook and Pen, wating for Luffy to talk so he can write down all the things he's going to say

After Luffy's lengthy hard-to-understand but quite simple explanation of what Haki is and all of its types, the Three were silent the whole time and was seemingly in deep though after the explanation

"I gotta learn all of that?! LETS FUCKING GOOOOOO!" Bakugou clenched his fist tightly while Internally celebrating

"It's like having multiple Quirks... Interesting." Todoroki uttered quietly

"So the Stronger you 'Will' is, The Stronger is your Haki..." Izuku deeply thought

"So? are you guys ready?" Luffy said as he turned to them with a huge grin on his face "The Training isn't simple ya know?" Luffy added as he attempted to seize them up, but this only motivated the Three as they looked at him with eyes full of burning Determination and spirit

"YES!/FUCK YEAH!/Yeah!" Izuku, Bakugou and Todoroki loudly responded with determined grins

4 Months Later... at Gym Gamma

"Hey, Jin-kun..." Toga called to her Villain Companion who turned to look at her when his attention was called

"What is it Toga-chan~?" Twice asked to his Blonde haired Villainess companion in a cheerful voice

"We... were both Villain aren't we?" Toga quietly asked to the Multiplying Villain who got confused by her Question but answered anyway

"Uhhhh, Yeah? Why are you asking the obvious Toga-chan?" Twice who was puzzled asked to Toga who was eerily silent for a moment before she started to speak again

"then... WHY THE HELL DID WE HELP HEROES TO TRAIN WHEN WERE FREAKING VILLAINS?! I MEAN I'M FINE TRAINING WITH IZUKU-KUN BECAUSE I CAN ACTUALLY SPEND MORE TIME WITH HIM BUT WHY ARE THOSE TWO HAVE TO BE IN HERE TOO?!"  Toga exasperatedly yelled out while pointing at Todoroki and Bakugou, Todoroki just ignored the whining Villainess while Bakugou angrily grunted at her before focusing on his Training again

"Now, now Toga-chan, calm down remember, we're basically being held captive here so we really had no choice.../AND TO BE PERFECTLY HONEST, I DON'T WANNA HELP THEM TOO!" Twice's contradictory personalities replied to Toga who just tiredly sighed

"You guys have really been a great help! SHISHISHI" The Two Villains soon heard a familiar cheerful voice behind them and turned to look and saw the Straw Hat wearing man grinning at the two of them, Twice just looked at the man with a comical teary eye on his latex mask while Toga straight up glared at the man while hissing at him

"Yeah, It was thanks to you two that the progress of those Three from learning Haki was Incredible, despite their short amount of time." The Two Villains soon heard another deep voice and saw the Tall, Fur Hat wearing man walking towards them with his Katana on hand

"Whatever, I don't need your thanks, AND I'M JUST DOING THIS FOR IZUKU-KUN YOU HEAR ME?!!" Toga irritatedly said before walking away from Luffy and Law

"Toga-chan, wait for me!" Twice saw his Villainess companion walking out of the Gym and followed suit because he's worried for her, Twice waved goodbye at the Two, Luffy happily waved back and Law just nodded at his gesture before looking at Todoroki and Bakugou as he began to observe them while they're doing their Training

"So Far, their Growth has been astounding in a mere four months... Todoroki-ya always had a potential with Observation Haki due to the smart use of both of his Quirk and his strategic mind and keen eyes... meanwhile Bakugou-ya's belligerent and Straight-forward personality suits the Haki he's mastering which is the Armament Haki...  and finally..." Law trailed off as he turned his attention away from the two

"The person who displayed the most growth is..." Law deeply thought as he looked at a certain Curly Haired Student

"Hey! Broccoli Hair!" Luffy happily called out to the Curly Haired teen who flinched by suddenly being called as he saw the Straw Hat wearing man approach him

"Y-Yes, Luffy-san? what is it? DID I MESS UP MY TRAINING REGIME AGAIN?!" Izuku frantically asked to Luffy who only grinned at him before speaking

"No ya moron! I just wanna tell you that you've quickly become strong after we started our Training 4 months ago! you were able to handle most of the Haki Training and not only that you also managed to awaken something awesome!" Luffy cheerfully said to Izuku who got confused at what he had said

"Awakened something? Me? What is it I wonde- WAIT DON'T TELL ME?!" Izuku's eyes widened at the sudden realization as Luffy's grin became wider at his reaction

"Yep! you managed to awaken your Conqueror's Haki! Isn't that awesome?" Luffy excitedly said to the dumbfounded Izuku with a grin

(Sorry for the SUPPPPEEEER late update! I really became busy these past few weeks because of Uni and work and recently I've been addicted to Genshin Impact that I forgot to update and write chapters 😂)