Inosuke woke up and quickly went to your room, not even paying attention that your sword was lying next to him. He took a deep breath and was about to open your door, but he decided to go back to his room. He froze halfway there and got angry at himself, so he went back to your room.

"Y/n! I'm only going to say this once! You don't have to say anything back. I... I love you, okay? I know I'm not the smartest, and I always want to challenge you, but it's because it makes me angry that I love you. I can't show it right. I can't tell you, and it pisses me off! I fell in love with you the night of the first day we were fighting! I love how you don't give a damn about what people think of you, and I love everything about you! I like spending time with you, and you are challenging me to be better.

I train hard not just for myself but also so you won't stop challenging me. If you stopped, I don't know what I would do. If you retired, I don't know what I would do or if you left to do something else. I want you here! I want you with me!" He yelled as Tanjiro had the note you had left behind. There was a loud crash, and Tokito, as well as some other demon slayers, went to your room and opened the door to see your cup broken on the floor.

"We're too late...." Tokito said as Inosuke looked at your broken cup.

"The guy that did this confessed to Rengoku... we need to make sure he pays," Sanemi said as Genya got out his gun.

"Did what?!" Inosuke asked.

"Y/n is gone... she sacrificed herself for her sister. Her parents were going to force her little sister to marry an old man for money," Tanjiro said as Zenitsu brought out your sword with a note attached to it.

He was crying, and Inosuke was trying to keep it together and refused to accept that you were gone just like that.

"No, she is going to be right back!" Inosuke yelled as Tanjiro went outside.

"You drugged our friend and sold her to her parents?!" Tengan asked as the guy was one of the new guys that he was training yesterday.

"You don't understand! Look, I didn't want to do it! I came to her a month ago and gave her a note that her parents left me promising to pay for my parent's treatment because both are sick and my little sister was having to take care of them while I earned money.

She told me they were only after her and they wouldn't go after my family if they knew what was good for them but a week ago... they burned my home and took my sister! My parents were barely saved by the neighbors. I showed her the note they sent me telling me what they did. If I didn't help them get her back home, my sister... they were going to do things to her that I couldn't repeat. She's only ten! Ten! She told me not to worry about it and that she was going to take care of it," he cried, "I met her parents in the woods and they gave me some tea she drank and told me to give it to her. I told her what they wanted me to do, and she said there might be sleeping herbs in there. But they aren't! I think they poisoned her so she couldn't fight back. Within minutes, she was unconscious. I thought I killed her... but the men told me she was going to be okay. I asked them when they were going to give me my sister and... they told me that I had to watch all of you to make sure you didn't go looking for her. If you did, they would kill my sister."

"I don't believe you," Genya growled as Inosuke had your sword and letter in hand.

"Wait, please! She said if you put all the letters together, there is a secret that only Rengoku knows. It's a question she asked. If you stack them in alphabetical order on the top folds, she wrote something on there. She said this will prove my innocence," he yelled as Inosuke wasn't going to give them the letter you wrote them.

Inosuke opened the letter you wrote him and read why you were gone and where all the evidence was, and then he saw you also had written your confession to him. But by the time they were going to find you, you were going to be gone. You gave him your sword because it was the only thing you could give him to remember you by. He fell to his knees, realizing he was too late to help you. Now he was going to find you dead or alive he was going to find you. Then he remembered something you told him.

"He has been after me since I was nine! Nine!"

"Wait, how old is Y/n's sister?" Inosuke asked.

"What does that have to do with anything?!" Obanai asked.

"Everything, she came to my room drunk and was telling me nonsense I had to help her to her room," he said.

"She's ten," Rengoku said.

"How old is your sister?" Inosuke asked.

"Ten," the man said.

"Her family was never planning on giving your sister back. They were planning on selling your sister to the man she was going to marry. He isn't interested in older women. He's interested in little girls. Was he married before?" Inosuke asked.

"Oh no, she's going to end up like the others," Rengoku said as Tokito gathered the notes and found out you asked Rengoku to get you pregnant.

"She knew his parents sold her already. it's why she left. Even poisoned, she is a fighter. Throw away all the food, all the spare water we have. They aren't done yet. You all need to stay here, I'm going to go find her," Inosuke said.

"We have no idea where she lives, who she married. There is too much ground to cover!" Mitsuri informed.

"Mr. Rengoku!" Your sister yelled as she dropped her bag and hugged him.

"Stella?" Rengoku asked.

"My sister said that she was going to be here. She asked me to leave when her bird came!" She smiled happily, "My parents didn't want me around, and so she told me I could live with her. I just had to do something so they wouldn't go looking for me and sell me to the bad man."

"Jason!" A girl screamed as a girl was running out of the woods with tattered clothes and hugged him.

"They burned our house down, and a bad man had me in his cellar. He killed her! He killed her," she cried as she gave him a hairpin that was normally worn during the marriage ceremony.

"What happened? You need to tell us where you were at!" Her brother said.

"She didn't look good at all. She found me in the cellar and told me whatever I heard no matter what, don't look back and follow the river once I found it and then the stream until I found cleaning and road and went straight until I found a girl that looked like her but just younger. She asked me to take this with me. When I started running, I heard her scream. He had a whip and was hitting her with it and dragged her back into the cellar before she could get out," she cried.

"My sister isn't here, is she?" Stella asked as tears ran down her face.

"The three of us will go. Her parents haven't met us, and if they see any of you, they might kill her before we find her. They might kill them to become they know, I think her family has been selling children to this guy for money," Tanjiro said.

"Where do you live?" Zenitsu asked.

"I live in a village a day's walk from here. It's a big house with a fence and a big yard. It has a clock in the front and two dragons. You can't miss it," she said, "there are tons of guards there too."

"Let's go, I'll get your sister back," Inosuke said as he put one of his swords away in its sheath and then put it in his pants like he did during the train ride.

He had your sword on his hip and his other one on the other.

"If we run, it will make it in under an hour," Tanjiro said.

"Get her back," Tokito said.

"We will watch them and make sure they don't interfere with this place," Genya said.

Inosuke put on his boar head and then took off running to your old home with the others behind them.