Start the time travel simulator from Sky Sister!

[You looked around carefully and found that Tanjiro and Nezuko were also there. You were a little surprised because you already knew what time period it was.]

【The Demon Slayer Corps' lord, Ubuyashiki Yoshiya, who was on the stage, said, "Since you want to be a member of the Demon Slayer Corps, you should follow the rules of the Demon Slayer Corps."】

[You looked at the scene and felt that there was trouble, so you perfunctorily said that it was okay, and then left on your own. ]

[The pillars all think you are a strange person and want to keep you for interrogation, but the lord tells you to leave.]

[You pouted your lips at this time. You didn't expect that you would not be approved to join the Demon Slayer Corps. But it doesn't matter. However, there is a place called Butterfly House in the Demon Slayer Corps that seems to be suitable for rest, so you plan to go there. ]

[You asked a random support staff member, pretending to be a new member of the Demon Slayer Corps and going to the Butterfly House, and you easily found out the location of the Butterfly House.]

[Soon, you entered the Butterfly House, pretending to be seriously injured and unable to walk steadily. When Kanzaki Aoi saw you, she quickly helped you in, then found a medical room and began to examine your body.]

[Then you said you felt uncomfortable all over, and she actually examined your entire body. However, she didn't understand what was wrong with you, so she found a bed for you to rest for a few days to see how you feel.]

"For the sake of Buddhahood, you're willing to pretend to be sick and move into the Butterfly House?"

"No... Why do I feel that this blue talent is inexplicably powerful?"

This operation is really beyond my control.

Although the Butterfly House is a good place to rest, slacking off in Shinobu Kocho's territory is truly invincible.

[But the next day, Kanzaki Aoi seemed to have reported your situation to Kocho Shinobu, who came directly to your door, looked at you with a smile, and said that you were not from the Demon Slayer Corps, and you didn't look sick, so what were you doing here? ]

[Kanzaki Aoi didn't expect you to lie to her, and she suddenly became very angry. ]

[But you curled your lips and said nonchalantly that you just wanted to find a place to live. After all, you had nowhere else to live. The Butterfly House is so big that it won’t be a problem to have one more person.]

[Shinobu Kocho was a little surprised and asked where you came from. ]

[You said you came from a big country in the East, and you came here because you were interested in the Demon Slayer Corps.]

[Shinobu Kocho said with a smile: "You can live here, but if you want to join the Demon Slayer Corps, you can't just think about being lazy every day!"]

[Afterwards, Shinobu Kocho wanted to test your strength first, so she invited you to compete outside.]

[You agreed and followed Shinobu Kocho out, but you saw the cute Aoi Kanzaki next to you, smiling and patting her head, and then continued walking forward.]

【Kanzaki Aoi blushed instantly when you suddenly touched her head, and her anger disappeared immediately.】

[But you didn't have a sword, so you just picked up a wooden sword, and Kocho Shinobu also used a wooden sword. ]

[You advised Shinobu Kocho to use her favorite Nichirin sword. After all, you knew Shinobu Kocho was not very strong and you didn't want to bully a little girl.]

[Shinobu Kocho felt that you were looking down on her. Although she was smiling, veins popped up on her forehead and she was a little unhappy with you.]

[The battle between the two of you is about to begin, although Kocho Shinobu is as graceful as a real butterfly and very fast. ]

[But you have a stronger body than the lower demons, and Kocho Shinobu's attack with the wooden sword is not painful to you, and you are very strong, so it is not difficult to defeat Kocho Shinobu without the Nichirin Sword. You can defeat her easily.]

[Shinobu Kocho didn't expect that you, who are not from the Demon Slayer Corps, would be this level. She was very surprised, and a sense of frustration arose in her heart, and her face looked a little ugly. ]

[But if Kocho Shinobu uses the Nichirin Sword, the situation may be reversed. After all, the poison on Kocho Shinobu's Nichirin Sword is quite terrible. Even a slight scratch on the skin may cause death.]

[You walked up to Shinobu Kocho, looked at her lost expression, patted her on the shoulder, and suddenly mentioned that Shinobu Kocho's sister, Kanae Kocho, was killed by Douma, the current Upper Rank Two.]

[Shinobu Kocho suddenly looked at you fiercely. This is her inner demon. She will help her sister get revenge no matter what. She doesn't understand what you mean by saying this suddenly, and doesn't know where you heard it from.]

[You smiled and told Shinobu Kocho that you would help her in the future, but you never wanted her to lose her life. You hoped that she would take good care of herself, especially not to poison herself... a series of gentle words.]

[After you said these inexplicable words, without waiting for Shinobu Kocho's reply, you turned around and went back to your room.]

[Shinobu Kocho was stunned. She could hear the tenderness in your words and your doting smile just now... It was as if she saw her sister, Kanae Kocho...]

[Shinobu Kocho looked at your back, constantly thinking about what she had just said. Although her heart was strange, it was warm. Although it was a strange face, it seemed that she knew her very well.]

【…】

"Shinobu Kocho... Come to think of it, I really like this character."

"I think I would also like to shoulder this heavy burden with Shinobu Kocho, right? After all, I read the comics so well back then."

Yuu muttered quietly when he saw this.

Chapter 9: Love Brain Kanroji Mitsuri

[Shinobu Kocho prepared your own room for you. You spent the whole week in a buddha-like state, eating and sleeping. You ate and drank for free in the Kocho House, which was really great.]

[But Shinobu Kocho couldn't stand it anymore and told you that you can stay as long as you want, but you must get up every day to practice with your stepson Kanao Kurika. ]

[You refused, but were still dragged off the bed by the angry Kocho Shinobu. She yelled in disappointment: "If you don't work hard at all, what does it mean what you said to me a week ago? Do you think you can help me defeat Upper Rank 2 at this level? Are you just talking?"]

[After hearing what Shinobu Kocho said, you were a little silent. It seemed like you should think of a way to become stronger. Then you started to fight against the "lazy cancer cells" in your body and decided to take formal action.]

[After that, you started to practice with Chanaho every day, and teased the cute and silly Chanaho from time to time. Sometimes you secretly touched her twice, and she didn't even make a sound, but just blushed and let you touch her. You exclaimed that she was so cute! Then you got carried away! ]

[And Tanjiro sometimes watches the fight, which makes you and Tanjiro very familiar with each other. Tanjiro is also amazed at your strong strength and surprised that you can perform the Fire God Dance, and asks you how you can do it. ]

[But you don’t know the reason either. You just know these things after traveling through time. It feels natural as if you were born with them. You can’t find the answer, so you don’t pay much attention to this kind of thing.]

[However, this suddenly reminded you of Nezuko, and you said you wanted to get to know Nezuko. ]

[Tanjiro is very easy to talk to, and agreed without hesitation. ]

[Tanjiro brought you to Nezuko's room. You saw how cute Nezuko was, but she was still sleeping. You couldn't help but take her home to raise her.]

【…】

Seeing this, You couldn't help but complain that the contrast was too great.

Before, he had killed all but three girls of the Kamado family, and he had had all the pleasure of having sex with them, but now they are getting along so well that he's hesitant to kidnap someone.

It was more satisfying to be so ruthless as before, but I will suffer retribution...

The damn Muzan had his heart ripped out, and that was what he couldn't stand the most!

【…】

[After you met her, you returned to your room. When you went downstairs, you saw Kanao again. Seeing her cute face, you couldn't help but pinch her cheek.]

[She didn't complain at all, she's so cute~ She's silly, just like Nezuko, I want to take her home. ]

[After playing with the cute Chanel for a bit, you went back to your room and continued to mess around. ]

[About half a month later.]

[Shinobu Kocho has become more and more aware of your strength, and has helped you apply for an exception to join the Demon Slayer Corps. Shinobu Kocho is a pillar, a cadre of the Demon Slayer Corps, and the lord seems to have listened to her opinion and allowed you to become a member of the Demon Slayer Corps, but starting from the lowest level.]

[When Koishibaru Kanroji Mitsuri heard that you were here, she came to see you excitedly and wanted to make friends with you. Her cheeks blushed in front of you and she looked so cute.]

[You have no opinion, and think that Kanroji Mitsuri is cuter than you, and you also like Kanroji Mitsuri very much. ]

[Mitsuri Kanroji blushed and sweated profusely, not knowing if this was your confession to her. She couldn’t help but start to nervously ask you what you thought: “Yuu, Yuu-chan, are you confessing your feelings?”]

[You narrowed your eyes, smiled slightly and said: "If Mitsuri doesn't mind, let's just take it as it is."]

【…】

"As expected of me, when I come to another world, I always think about starting a harem. After all, this is what makes the other world feel like."

Yu watched himself improve the favor of Shinobu Kocho and then Kanroji, and recalled the feeling of being in the harem in the other world.

However, Demon Slayer is set in ancient times, so having multiple wives seems normal, and every family usually has more children during this time.

【…】

[“But, but this is our first meeting, and we still need to get to know each other…” Kanroji Mitsuri trembled shyly. Although she wanted to agree to you, she really didn’t know you very well, and she felt that you didn’t know her either.]

[You promised Kanroji Mitsuri, but at this time, Kocho Shinobu suddenly came in and looked at the two of you strangely. You inexplicably felt like you were caught in bed.]

[But Kocho Shinobu didn't think too much about it. She just let Kanroji Mitsuri fight with you. Kocho Shinobu thought you were a good candidate. Although she couldn't treat you as her stepson, she wanted to train you and make you stronger so that you can play a role in future battles.]

[You looked helpless, but still listened to Shinobu Kocho's words. However, speaking of giving you an unsharpened sword or katana this time, the Love Pillar has no markings yet, so it won't be difficult for you to defeat it.]

[Shinobu Kocho agreed to your conditions and asked Mitsuri Kanroji to fight with the Nichirin Sword, but Mitsuri Kanroji was very nervous because she was going to fight you all of a sudden, and she was a little overwhelmed, but she still chose to fight. ]

[Your battle with Kanroji soon began. You used Sun Breathing for the first time in this world. You had not used it before in the battle against Kocho Shinobu, and only used Water Breathing.]

[Although Ganlu Temple's weapon is unique, it is not difficult to defeat him once you get used to it. You used Sun Breathing to fight against him, and you had the momentum to suppress Ganlu Temple, and then you won.]

[Tanjiro, Zenitsu, and Inosuke who were watching the fight widened their eyes in surprise. They didn't expect you to be able to defeat Lianzhu. ]

[Shinobu Kocho originally thought that her defeat was due to her own weakness, and she was a little unbalanced mentally. But when she saw that other pillars were also defeated, she immediately felt balanced mentally.]

[You pulled up Mitsuri Kanroji, who was sitting on the ground and looking at you in surprise, and praised her for being amazing, even though she was a girl.]

[Kanroji Mitsuri felt a little shy after being praised by you, and was suddenly at a loss. She never thought you were such a powerful guy, and she got to know you a little better.]

[Mitsuri Kanroji felt that she liked you very much, and she hugged you excitedly, but then she realized that she had lost her composure and apologized to you. ]

[You didn't care and smiled gently at Kanroji Mitsuri. ]

【And Ganlu Temple was obviously mesmerized by your smile, and was extremely excited. She originally thought you were cute, but after experiencing this battle, she found that you were not only cute but also very handsome. Her heart was almost captured by you.】

【…】

[In the days that followed, Kanroji Mitsuri often approached you for sparring, thinking that fighting with you could improve her strength, and that she was also very happy to see you.]

[And Kanroji Mitsuri sometimes invites you to eat together, but you also encountered the situation of Snake Pillar Iguro Obanai. That guy likes Kanroji Mitsuri, and when he saw you and Kanroji Mitsuri getting close, he looked at you with great resentment, as if he wanted to kill you. ]

[Your feelings towards Kanroji Mitsuri are very direct. Even though you know Kanroji has shortcomings such as a big appetite and great strength, you still like her very much. ]

[It is also because of this unconditional love that Kanroji Mitsuri clearly feels your pampering. In such a chaotic era of war between humans and ghosts, gentleness and pampering are rare and precious. She also likes you in her heart and wants to stick to you every day. No matter what she does, it can be said that she is purely in love. ]

[The relationship between the two of you is heating up very quickly, and Kanroji Mitsuri has even decided to marry you, but she feels it’s too fast and doesn’t dare to tell you.]

【…】

Chapter 10: Infinity Train, Upper Three

"Mitsuri is so cute too."

You lifted his chin, the corners of his mouth slightly raised.

The Love Pillar is indeed a love-brained person. He gets carried away just by being confessed to. He is so innocent~

It looks like this memory will be very interesting too~

You thought about it and continued reading.

[You and Kanroji Mitsuri's relationship is getting better and better. Shinobu Kocho can't stand it, but she still smiles as usual and keeps telling herself to be more mature.]

[However, because you and Kanroji Mitsuri interacted frequently, Kanroji Mitsuri and Kocho Shinobu also became very familiar with each other. ]

【Some time passed.】

[Shinobu Kocho and Mitsuri Kanroji had someone make a Nichirin sword for you. It looks pretty good and you like it very much.]

[Tanjiro and the other two are going on a mission with the Flame Pillar Rengoku Kyojuro. Seeing how happy you are every day and not killing demons, Shinobu Kocho smiled and asked you to go with them.]

[You are still living a happy life with Kanroji Mitsuri at this time, and you are too lazy to go out. But Kocho Shinobu holds her forehead and reminds you that if you don't take any action for a long time, you will be stripped of your membership in the Demon Slayer Corps.]

[Shinobu Kocho said with some resentment: "You stay in the house every day and talk about love, but you can't help me with anything."]

[You feel helpless, and realize that it is Kocho Shinobu who is complaining about you, so you plan to go. Love Pillar Kanroji Mitsuri wants to go with you, but Kocho Shinobu holds her back. After all, you are strong enough, and there is also the Flame Pillar and Tanjiro...]

[If I add a love pillar, it would be too much trouble to kill a demon. He is not an upper-rank demon. It is just right to separate the two of them so that I can have some free time. ]

[Seeing this, you whispered something into Kanroji's ear. She blushed instantly and nodded like a wife. Then you looked at Shinobu Kocho to indicate that you agreed to her terms.]

[Shinobu Kocho nodded in satisfaction and told you to prepare today and leave tomorrow, then she took Kanroji Mitsuri and left.]

[At night, Kanroji Mitsuri slipped into your room through the window and excitedly told you that she was here, after all, that was what you had whispered to her before.]

[You took the salary from the Demon Slayer Corps and ordered a lot of clothes for Kanroji Mitsuri in advance, and asked her to wear them one by one.]

[She looked at these clothes that were more revealing than her team uniform, her face was red, and she didn't know what you would do to her later.]

【…】

[You didn't let her down. She is very happy tonight. ]

【…】

When You saw this, he couldn't help but laugh. Mitsuri Kanroji is really so cute.

Moreover, she is in love and she does whatever I say. She is so obedient.

【…】