After his battle with Kyogai, the Drum Demon, Goku followed Tanjiro Kamado through the mansion, to search and find two kisd who came with Tanjiro. "So... Since when you were fighting that demon?" asked Goku. "I don't know, honestly, but... About ten minutes, I think" replied Tanjiro. "I understand..." sighed Goku. Finally, Tanjiro and Goku arrived in the room where the two kids were. Goku opened the door. "Hey!" he exclaimed. But Kiyoshi, the older brother, took the closest thing around and threw it at Goku. The object landed right in the middle of Goku's forehead. "Ouch!" said Goku, clutching his forehead. "Why the hell are these kids throwing things at me!?" he asked. "Hey, you two, calm down! He's an ally!" explained Tanjiro. "What is his name, onii-chan?" asked Teruko. "My name is Goku, little girl..." said Goku, massaging his forehead. "Let's go outside now. Zenitsu is there with Shoichi" said Tanjiro. "Shoichi? Who is he?" asked Goku. "The third brother" answered Tanjiro. "Oh, I see. Let's go, then" said Goku, understanding. Then, led by Tanjiro, Goku got outside the mansion. As the four boys saw the sun again, Goku noticed other two guys. One of them had yellow hair, yellow haori and yellow eyes. He was holding a box in his arms, and he was bleeding from the nose. The second one had a boar mask on his face, and unlike the first one, he had no haori, with his raw physique and abdomen clearly showed. "T-Tanjiro..." said the yellow boy. "I... I protected it..." he said, pointing the box. "C'mon, get up and fight me, dumbass!" said the boar-headed boy. "Tsk... Fine, I'll handle it" said Goku. "Hey, you with the boar mask! Can you please stop hurting that poor boy?" he asked. "Who are you? You seem pretty strong!" exclaimed the boar-headed boy. "Let's fight!" he then screamed, launching towards Goku. "Like hell we will!" exclaimed Goku, dodging the charge and hitting the boar-headed boy on the nape, knocking him unconscious. Due to the raw impact, the boy's mask fell off, revealing his face. He head long and black hair, with blue nuances at the end "What a weirdo..." commented Goku. Then, the boy walked towards the yellow boy and gave him his hand. "Are you okay, yellow boy?" he asked. The yellow boy grabbed Goku's hand and stood up. "Yeah, I-I'm fine... What's your name" he asked. "My name is Goku Urokodaki. What's your name?" said Goku. "My name is Zenitsu Agatsuma..." said the yellow boy. "And tell me, who might that boar-headed dumbass be?" asked Goku, pointing at the unconscious boar-headed boy with his thumb. "I have no idea. He attacked me because he wanted the box... But I knew it was important for Tanjiro, and I didn't let him took it..." explained Zenitsu. "I see" said Goku. "Well, I'll leave in a while, but first, I want to help you bury the dead people. And I hope boar-head wakes up, so I can ask him his name..." explained Goku. "Are you sure? You're not forced to stay with us if you don't want to" said Tanjiro. "I want to" said Goku. "Arigato, Goku-san..." said Tanjiro. Goku smiled.
Later, that day, the boar-headed boy suddenly opened his eyes and screamed "HEEEEEEEY!". As he got up, he ran towards Goku. "Hey, stop!" said Goku. "What's your name?" he asked. "HASHIBIRA INOSUKE!" screamed the boar-headed boy. "Nice to meet you, Inosuke-kun! My name is Goku!" exclaimed Goku. "Oh, and anyway, your mask fell when I knocked you off" he added. "Huh? Really? And how do I look?" asked Inosuke. "You look like a girl" answered Goku. "But, I have to admit, I wish I had green eyes too" he added. "But you've got green eyes too!" exclaimed Inosuke, pointing at him. "No! Mine are dark green, I wanted them light green, like yours!" explained Goku. "They're green anyway!" said Inosuke. "Well, actually yes..." realized Goku. "Anyway, what are those guys doing?" said Inosuke, pointing Tanjiro and the others. "They're burying corpses. Would you like to help us?" asked Goku. "No! I won't bury anyone!" said Inosuke. "What if we do a challenge?" proposed Goku. "The one who buries more corpses between me and you wins! Are you in?" he said. "Of course I'm in! I'll show you who's the strongest!"exclaimed Inosuke, already rushing inside the mansion to pick up some corpses. "It didn't took so long to change his mind..." muttered Goku. Then, Goku turned back to Tanjiro and the others. "Are you finished with this one?" he asked. "Almost, Goku-san!" replied Teruko. "Fine. The boar's name's Inosuke, by the way..." said Goku. "Did you ask him his name?" said Zenitsu. "I did" replied Goku.
As the sun began to set, Goku was sitting in front of a grave. Suddenly, Shoichi approached him. "Goku-san, why did you stay with us?" he asked. "Because I wanted to ask Inosuke his name. And also because I wanted to bury the dead people, in sign of humanity..." said Goku. "Humanity? Aren't you human?" asked Shoichi. In that moment, Goku realized he might have talk too much. What if Shoichi started suspect he might be a hybrid? "Of course I'm human!" laughed Goku. "It's just that I want to make everyone know I'm kind!" he corrected himself. "Oh! Now I understand!" said Shoichi. Then, the little kid turned back and walking away. Then, Goku turned back to the grave. "Hey, Goku-san!" voiced Tanjiro, as Goku turns again. "What is it!" asked Goku. "Aren't you coming with us?" asked Tanjiro. "No. You're all funny, strong and kind, but I have my own path to follow. I'd love to stay, but I can't" explained Goku. "I hope we meet again soon, guys..." he said, smiling. "I hope so, Goku-san..." said Tanjiro. "Call me Goku, or Goku-kun. I'm not your superior, nor senior. Beside, I feel old when someone calls me with the "san" suffix" explained Goku. "I understand, Goku-kun!" exclaimed Tanjiro. Then, Goku turned back. "Oh, and tell Inosuke that I'll fight him next time we meet..." said Goku. "I will" promised Tanjiro. Then, as Goku started approaching the forest, he heard another voice. "See you soon, Goku-san!" it was Zenitsu's. Goku turned, and waved his hand at him. "Goku-san is really cool... I hope we see him again..." said Zenitsu. "I want to fight him!" exclaimed Inosuke. "We will meet him again. I'm sure of it" said Tanjiro, smiled. That day, Goku met a weird trio, who might become great friends in the future.
Chapter 6 - End.