As Benimaru walked towards the foot of the mountain, Law, Bepo, Shachi, and Penguin were already there, waiting for Benimaru, which surprised all of them, considering that Benimaru was always the first one in training time.
"Where did you think Benimaru went? He did not come home yesterday, didn't he? After ending our training session, he just walked towards the forest, and then that's the last time I saw him," Shachi then said, as he was curious about what Benimaru was doing, he did not even consider that Benimaru was hurt, as he knew what the capabilities of Benimaru.
"Yes, even Wolf-san was asking about him, it seems he did not go to their nightly reassembling, as Wolf got hurt when his invention exploded," Penguin then added,
"You don't think that he was captured by an Oni in the mountain, don't you?" Bepo then said, scaring himself as he certainly believed in those things.
"Bepo, that would not even be possible, you know how strong Benimaru is," Law then said, calming Bepo as they all just waited patienly for Benimaru, after 5 minutes more of waiting, Benimaru arrived, he could've arrived earlier but Benimaru decided to take a leisure walk as he wanted to got used to his new senses, he could even hear the discussions of the 4 even without him using his devil fruit to amplify his hearing, another cool perk of the genetic enhancement, he did not know where though.
"Alright, it seems that I'm late, I discovered a hidden lab at the bottom of this mountain and I just got lost in time, I'll show you later with Wolf-san after our training session," Benimaru said, explaining why he is late.
"Wow, did you find any treasure there?" Shachi then asked, while Bepo's eyes were twinkling as Bepo always wanted to participate in a treasure hunt, Penguin also have a sparkling eyes, but it was because he was hopeful that there are treasure there, meanwhile Law was not interested, as only 3 things are in his mind, avenge Rosinante, Truth behind Will of D. and the training session.
"Well yes, it was actually would the added to your Training session, I found a devil fruit that can amplify anything, like size, speed, strength even weight, I can amplify it, up to 10,000 times," Benimaru then explained, this made the 3 even more excited as they know how rare Devil Fruits are, meaning that maybe, there are more treasures down there.
While Law's attention was on a different part of his sentence, as he heard that Benimaru said he could amplify anything by 10,000 times, meaning that he could strengthen himself over 10,000 times, making Benimaru unstoppable, it nearly made Law ask him in an alliance with Benimaru as he thought that with Benimaru's strength times 10,000, he could certainly defeat Doflamingo.
Law then contemplated and decided not to ask Benimaru for help, as he wanted to avenge Rosinante himself. That's also why he would not drop out of this training session and would continue to work towards his future goal.
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"Let's start then, pick your boulder", Benimaru said, wanting them to pick their stone as it would be their companion for the day. The four then left to find their boulders. Law and Penguin did not take it seriously as they just picked the first one they could find, but Bepo and Shachi looked for a boulder that could grip more easily, especially if you are carrying a heavy weight.
After 30 minutes, the four then comeback to where Benimaru was waiting, Benimaru then took the boulders that they picked and amplified it's durability and hardness by 10,000 times, making it nearly as strong as adam wood, perhaps even as strong as the famed wood known for its hardness.
He then amplifed it's weight by their owners ratio, as for Penguin and Shachi, both of their boulder's weight were amplified by 200 times while Law's got amplified by 300 times and Bepo's got amplified by 500 times, each of their stone have now more than tons of weight, specially Bepo's as it was nearing it's 200 tons for the whole thing.
"Now, you would take your boulder, and roll it towards the top, I don't care how you do it, whether by lifting it or dragging it, just no devil fruits, after you take it to the top, jump to the cliff with your boulder and start again. Repeat it until lunchtime. You don't have any limit on how much you should do, but you would be required by a minimum of doing it 10 times this day, that's the new training, go on now," Benimaru then explained the entire training plan he had, which made the 4 immediately start.
Benimaru himself was going to train similarly to Garp but without the outer shell of the ship, so he dug the ground until he saw the bedrock, then he proceeded to take a huge chunk and part of the bedrock and refilled the hole with the dirt he got when digging. Benimaru then amplified the bedrock's hardness and durability by 10,000-fold. He also amplified the sharpness of the rough edges of the rock by 10,000 fold, making him cut himself every time he would punch, it was to improve upon his will, as you override the instincts of never getting hurt.
Benimaru then started punching, using his full natural strength without any help from the Devil Fruit. he then started doing a gatling punch, where he would just throw multiple punches for as long as he could.
As the time passed, the 4 were now halfway through the minimum requirements, even though they are wheezing and heaving, something that they have not felt since the very first day of their training. Benimaru too was now tired, as he must've thrown more than a million of punches in just 2 hours span of time, his hands were bleeding all over, his bones were cracking and healing and his arm was sore but Benimaru's eyes were just full of passion, reminding himself of the boring place he got before and the exciting future that awaits him.
Another 3 hours passed as Benimaru was now sore all over his body, his arms are now cracking everytime he would throw a punch but his pace is still the same, his hands were now covered in driedblood as he was still bleeding, his knuckles were now cracked but he could tell it's also healing. Deciding that it's now time, he punched one more time using his whole momentum of strength as a final punch, which destroyed a chunk of the bedrock.
As Benimaru finished, you could see the fist mark that Benimaru made in the rock that he used, as almost all of them are in identical place, showing that even though Benimaru was just throwing wild punches, his control over them is impeccable.
Law then emerged from the woods, obvious that he is beaten as he thought that Benimaru was just sitting, but what Law saw is Benimaru full of sweat and blood that splashed all over his body. Benimaru, who already know that Law is watchingz just looked at him and pointed at Law's rock, he then gestured punching the rock towards Law, indicating that it's the next set of training in the afternoon instead of sparring against Benimaru against them.
When all of them finished and went toward the place where Benimaru was staying, Benimaru just allowed them to rest and told them to hunt down their food, to make them move past their exhaustion. Benimaru did the same as he hunted a sea king to eat.
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After lunch, Benimaru then explained the next part of their training.
"Punch the boulders with all of your strength, like this," Benimaru then demonstrated with his boulder, then instructed them to never stop until he said so, then the 4 started with Benimaru continuing his efforts earlier, now with 4 more as his companions.
The four members of the heart pirates were having a hard time as they are not used to hurting themselves in this extent, but they would just saw Benimaru that wasn't stopping even though his hands were already bleeding and this made them continue and stick until 5 hours later when Benimaru told them they could stop.
As Benimaru told them they could stop, all of them collapsed on the ground, gasping for air as punching is one of the exercises that are so simple yet so tiring to do. Benimaru then left to go towards Wolf, to discuss his findings about the laboratory, leaving the 4 to catch their breath and rest for a moment. Benimaru then catch another sea king as dinner for all of them.