After his training with Obanai, Goku finally reached Sanemi's training ground. "Is Haganezuka's dojo this way...?" wondered Goku. "Wrong!" noised Rin, his beloved Kasugai crow. "When did you... Tch, nevermind..." muttered the boy. Suddenly, Goku heard a very familiar voice. "GOKUUUU!" it was Zenitsu, who jumped on him. "PLEASE, PLEASE LET ME ESCAPE!" he yelled. "Zenitsu-kun... Let me go, please," said Goku. "YOU'RE A HASHIRA, RIGHT? MAKE THIS HOTHEAD REASON!" yelled the yellow. "Who's the hothead?" asked a voice. Goku turned and saw Sanemi, grabbing Zenitsu's head. "Make your choice, either come back to train or be killed by me!" he thundered. "Come on, Sanemi, don't be so harsh with him..." said Goku. "Tch... It's not my fault if he doesn't train like I said," replied Sanemi, releasing the grip on Zenitsu's head. "C'mon, Zenitsu-kun, let's get through this together..." said the one-eyed the boy, smiling and giving his hand to Zenitsu. "But... But I don't want to train...!" said Zenitsu. In that moment, Sanemi knocked him off with a hit on his neck. "Carry him," he ordered. "Of course..." said Goku, carrying Zenitsu on his shoulders. "So, what's the training plan?" asked the boy, following Sanemi. "1v1 against me. Simple, isn't it?" said Sanemi. "Yeah, it is. Training with another especially -- especially if they're as strong as me or stronger -- is by far the best way to train," said Goku. "Fine. Be ready, then..." said Sanemi. "Well, to be fair, the training was every slayers charging at me and try to hit me, but since it's you, a 1v1 will be enough. Also because I don't think your training will pay off if other slayers helps you..." he then added. "Fantastic idea, Sanemi," said Goku.
"So, here we are, on the training ground," said Sanemi. "Hey, you jerks! Observe how two real men fight!" he exclaimed, talking to the slayers. "Don't be so harsh, Sanemi..." muttered Goku, extracting his two wooden swords. "...Or I'll be harsh on you!" he then exclaimed, rushing forward. "I'm not asking for anything better!" exclaimed Sanemi, extracting his wooden sword and countering Goku. As the clash goes on, Zenitsu wakes up. "Oof... Am I... Am I still here...?"he wondered. Then, he turned and saw Goku and Sanemi fightinhg. (They're really fighting each other...) he thought. (When we met, we were as strong as you. Now you handle one of the strongest Hashiras on your own, even becoming one... When did you got so strong, Goku...?) wondered the yellow boy.
At the end of the fight, Goku retreated in his room. (I don't know why, but when I fight Sanemi, I feel... alive. And they say Gyomei is even stronger! I want to fight him!) he thought. Suddenly, the one-eyed boy heard a familiar voice. "Hey, wait, aniki!" that was Genya's voice. (Huh? That's Genya-kun's voice...) thought Goku, following the voice and hiding to avoid being seen. "There's one thing I need to tell you... You need to give it a rest!" said Genya. Then, Goku saw Sanemi giving his back to his little brother. "I don't have a younger brother," said the Wind Hashira. "If you don't back off, I'm going to destroy you!" he saw, turning to face Genya. (Now I understand why Genya-kun is so rude sometimes... Sometimes I wonder how's like to have a little brother... Unfortunately, I never experienced the feeling of being loved by a familiar... But that's okay, I guess...) thought Goku, sighing. "Look at you, you can't even use Breathing Styles... Just quit the Demon Slayer Corps..." said Sanemi, turning to leave. "W-wait, aniki! I just wanted to apologize to you..." muttered Genya. "I couldn't care less about your excuses..." snorted Sanemi. "Aniki, I... I even ate demons, just to continue fighting," said Genya. In that moment, Sanemi froze. "What did you just say...?" he whispered, with a crescendo of anger. "You ate some...?" he repeated. In that moment, some kind of pressure invaded the room. Then, Sanemi disappeared. (He disappeared...?) wondered Goku. Then, the boy realized. "Genya-kun, watch out!" he shouted, dashing towards Genya and pushing him away, just before Sanemi was able to gouge out his eyes.
Outside the building, Zenitsu was relaxing. "I wish how many more days we'll have to keep up with this..." he wondered. Suddenly, he saw something crashing through the wall. "Ha! It's that cold-blooded man! Lay down, pretend that you've fainted!" exclaimed Zenitsu, laying down. But then, he saw Goku. "Sanemi, with all due respect, stop it! Are you planning to kill Genya-kun?" asked the boy. "Hello no, I'm not going to kill him," said Sanemi. "It would be easy to kill him, but since that's against the rules... I'm going to ruin him behind recovery!" he added. "He's your brother, you can't do this? Do you have an idea how much I wanted a brother in my life? And you, who have one, treat him like this?" asked Goku. "Let's make a deal then. If he quits the Demon Slayer Corps right now, I'm gonna let him go," said Sanemi. "You don't have that kind of authority, just because you're the big brother!" said Goku. "Probably you want him to leave the Corps because you don't want him to get killed, do you? But even if he has no breathing styles or whatever, he's made up his mind to risk his life fighting demons!" he added. "And, for the record, without Genya, me and the others couldn't be able to defeat that Upper Rank, so he's a valuable slayer!" he then concluded. (Goku is... protecting me from aniki? Why?) wondered Genya. (No, I think I understand. He's doing this... Because Tanjiro would have done the same...).
"I ask you please to get out the way, Goku," said Sanemi. "Sorry, I can't. I know you don't want to hurt me because you see me as a friend, but I can't let you hurt Genya-kun, who's like a brother to me, unlike what you think of him!" exclaimed Goku. (B-Brother...? He sees me like a brother...?) repeated Genya, in his mind. "Fine... Then sorry, but I'll ruin you beyond recovery first!" exclaimed Sanemi, charging at Goku. (Here it comes...) thought Goku. Then, he managed to block Sanemi's fist. "I won't fight back, I don't want to hurt you," said Goku. "Then just get out of the way!" said Sanemi. "Sorry, I already said I can't," said Goku. "Zenitsu, get Genya out of here, please!" he then exclaimed. "Aniki, stop that! Goku-kun has nothing to do about this!" exclaimed Genya. "Sorry, but we're out of here!" exclaimed Zenitsu, dragging Genya away. "I admire you, Goku, you just have one difect: You're too kind," said Sanemi, realizing he was exaggerating and withdrew his punch. "And you're too hot-headed," said Goku, laughing. In the end, Sanemi slightly smiled, then turned and left. "He managed to tame the Wind Hashira..." commented a slayer. "I didn't tame him. I calmed him down," said Goku. Then, he left as well.
Chapter 47 - End.