Start the time travel simulator from Sky Sister!

[You feel a little irritated. If it turns out to be the two ghosts from the original novel, it looks like you have to move.]

[It's just an ordinary ghost, but it dared to pick a fight with you, making you very upset, so you walked out of the hole you made. ]

[One of the ghosts is a female ghost holding a handball. ]

[The other one is a short-haired male ghost with eyes on his palms and arrows in his eyes. ]

[When the two ghosts saw you, they said that the ghost that Muzan mentioned that lost control was you. ]

[You looked at the two ghosts with disdain, not understanding why these two dared to come and pick a fight with you, even though they were not even at the level of Lower Rank.]

[Tanjiro behind you panicked and quickly ran in front of you, asking you to step back and leave it to him! ]

[You feel looked down upon, so you take out the iron rod you have been using to practice swordsmanship, then take two bottles of potion from your pocket and pour them on the iron rod.]

[You looked at the two ghosts with contempt, saying that you alone are enough to deal with them, and there is no need for Tanjiro to intervene. ]

[Tanjiro was confused and didn't know what you were going to do next. ]

[But these two ghosts are not happy, and call themselves the Twelve Ghost Moons. ]

[You laughed at the two of them, saying, "Twelve Demon Moons? Just you two? You're too weak!"]

[The two ghosts suddenly became furious, and the handball ghost grew four more arms, a total of six arms.]

[The Arrow Ghost suddenly controls arrows that are invisible to ordinary people as weapons, and attacks you like a sharp sword.]

[Tanjiro feels something is wrong and quickly tells you to be careful...]

[But in the blink of an eye, you have appeared behind the two ghosts, and the two ghosts were directly cut in half by the iron rod in your hand, and there was a trace of flame on the iron rod! ]

[“Too weak.” You taunted the two ghosts. ]

[Because they cut in half, not their heads, the two ghosts did not die quickly.]

[But... in an instant, the bodies of the two ghosts began to wither and gradually turned into dust. ]

[You lament that you have never had a ghost to experiment with your potion. Today, two ghosts came and it seems that the effect is good. ]

[Tanjiro was stunned. He never expected you to be so powerful. Your moves were so fast that I couldn't even see them! ]

[And you didn't even cut off the demon's head, but the demon died! ! This completely broke Tanjiro's cognition, but... he also realized that it was because of the potion! ]

[Tamayo smiled and explained that the potion you poured on the iron rod just now can quickly melt the cells of the ghost until it dies. It is one of the potions you created, but it has not been mass-produced yet and is still under testing.]

[When Tanjiro asked why you were so fast, was it also a potion? ]

[Tamayo also shook her head, because she had noticed that you were very strong from the beginning, but she didn't understand why you were so strong, and she didn't ask out of curiosity.]

[You glanced at Tanjiro casually, told him that it was time to move, and that he should give you the blood of a powerful demon, preferably an upper-rank demon. If necessary, you can also go and get the blood yourself, and he will tell you the demon's location.]

[Tanjiro also said he understood. Seeing this, you let Tanjiro leave first. You and Tamayo will finish the work and then leave.]

[Tanjiro said he understood, and you both parted ways. ]

【…】

[After a while, you and Tamayo found another place to live, and you and Tamayo began to study Nezuko's blood. ]

[With your powerful talent, two months later, you and Tamayo used Nezuko's blood to successfully develop a potion that can overcome sunlight. Now you two can stand under the sun.]

[You excitedly picked up Tamayo and spun her around in the sun. You were so happy that you even kissed her hard.]

[Tamayo was also very happy, and she did not stop you from kissing her, because she was also happy in her heart. She had already fallen in love with you after spending several years together.]

【…】

"It's really done!"

You was also very excited. He didn't expect that he could actually make such a thing, and it didn't take much time at all.

The talent of this "Medical Saint" is really beyond standard, it is worthy of being an orange talent!

【…】

[Recently, when Tanjiro wrote to you saying he was going to Yoshiwara, you knew they were about to fight Upper Six, and you happened to have prepared a potion specifically for Upper Six.]

[You told Tamayo to stay at home, and you took a box of medicine and an iron rod and went out. After all, that place was not very far from where you were now. If you ran over there with all your strength, you might even see them fighting each other~]

【A few days later. 】

[You came to a ruin. It seems that you are late. Things happened faster than you expected. The battle is over, but it is not a big problem for you.]

[Because you heard a noisy sound, not far away there were two heads arguing, and they were slowly disappearing. There is no doubt... it was Dakimaki and Jifutaro from Upper Six.]

[And Tanjiro happened to be nearby, you greeted him and then looked at Daki's head, who was still arguing with Jifu Taro, saying that he was useless and lost the battle... but you picked up two bottles of medicine and poured them directly on her head. ]

[Of course you won't let her die so easily. This is a very good experimental subject. One bottle of potion is to turn her back into a human and retain her ghost abilities, and the other bottle is a regeneration potion.]

[“Since you don’t want to die, it should be okay for you to live, right? Daki.” Your words were very calm.]

[Daki's head stopped disappearing and instantly grew out. At the same time, because she had become a human, she had cut off all ties with Jifutaro and Muzan.]

[So Jifu Taro is still disappearing, but his eyes are filled with shock. He never expected that his sister could be saved?! ]

[And Tanjiro was even more confused. They had spent so much effort to kill the demon, but you just saved him. ]

【“Brother…Brother…” Daki watched as her brother was about to disappear, while she herself survived, and immediately stopped the desperate roar that had just come out of her heart.】

[She quickly looked at you, knelt down in an instant, and begged you to save Jifu Taro... But as soon as she opened her mouth, her brother disappeared. ]

[“I’m so sorry, I only brought one serving.”]

[“You have now become a human and have retained the blood demon art. From now on, your master is no longer Muzan, but me.”]

[Your calm words fell into the ears of Daki and Tanjiro around. ]

【“What…are you kidding me!” The ribbons on Daki’s body suddenly attacked her. 】

[However, when these ribbons were about to approach you, they stopped! ]

[You had anticipated this situation a long time ago. You added some ingredients to the recovery potion just now, breaking it from Muzan's curse, and added some of your own blood and special things to it, binding its reconstruction curse to yourself, and it was a master-servant type.]

[After all, Tamayo had already made the potion that could break Muzan's curse, but this potion that could remove the curse and rebuild it was made by you.]

【…】

"Fuck! Can this be done!??"

"This talent is too outrageous. Is this still medicine? Is this magic?!"

Yuu's eyes widened.

Chapter 15 Taste

[“You are my pet now. You can’t disobey me or kill me. I can spy on all your thoughts and will just like Muzan.” You looked at Daki and spoke coldly. ]

[Daki gritted her teeth and yelled, "Who the hell are you?"

[But you said that Muzan should have mentioned me. After all, I am a demon who escaped from Muzan's control. ]

[Daki opened her eyes wide. Lord Muzan did mention it, but she never expected it to be this little brat in front of her, and there was no smell of a ghost on him. ]

[You looked at Tanjiro on the side and smiled naturally, saying that Daki has become a human, so just leave it to me.]

[Tanjiro then asks if you have made a potion that can turn demons into humans. ]

[You said you had it, but you didn't bring it today. You have to go back to get it from him. And the medicine was developed by modifying Nezuko's blood. Today, we can also study the blood of the upper rank.]

[As you spoke, you drew a tube of blood from the pool of blood on the ground where Jifu Taro disappeared, and put it in your box.]

[You turned to look at Daki and told her to follow you back, and her body followed you without any hesitation.]

[She was making noises next to you, but you told her to shut up, and she instantly quieted down.]

【…】

"As expected of me..."

"Using potion to remove the curse and reconstruct the curse connection, there is no second person in the entire Demon Slayer who can do it, right?"

A sigh of emotion.

After all, the curse-binding thing can only be established by Muzan by turning others into demons.

In fact, it is equivalent to giving yourself as a cell to others, assimilating the cells from others, and then establishing connections with your own cells.

It should be a similar principle, but I am not quite sure how it works specifically.

【…】

[You took Daki back with you. During the journey, Daki's appearance gradually changed, returning to the way it was before she became a demon. Although Daki doesn't have the strength of an upper-rank demon, she is still quite good as a helper.]

[If I remember correctly, Daki's name seemed to be Xiaomei before... But, you don't care about that. ]

[Because Dakimakami often has unwilling thoughts in her heart, you often lock her up in the dungeon and torture her in various ways until her thoughts obey you and she becomes a well-behaved servant.]

[You took Daki and conducted experiments on her, injecting various drugs into her body, strengthening her strength and allowing her to truly reach the level of an upper rank.]

[Then, you had a companion for swordsmanship practice. During the long period of training with an upper-rank being, you actually opened up a transparent world! ]

"!?"

"Okay, okay, if there are no enemies, then create enemies for yourself and then train yourself."

Looking at this wave of operations, You couldn't handle it well.

Am I going to become Kakarot?

I like to create strong enemies for myself.

[Tanjiro was seriously injured and was in a coma for two months after the battle. He then brought Nezuko to find you.]

[And you also offered a potion that could turn her into a human, but you kept Nezuko for two weeks under the pretext of needing to observe her condition.]

[Tanjiro did not refuse and kept Nezuko. After all, he was also worried about whether Nezuko would have any problems. However, the Demon Slayer Corps still had things to do, so he had to go back first.]

[Tell Tanjiro to talk to the lord or the pillar. If you want to kill Muzan, you and Tamayo can help.]

[Tamayo has been researching a drug to cure Muzan recently. After all, your arrival has accelerated the progress a lot, so she doesn't care about other things. It's up to you. ]

[Recently you have been playing with Nezuko and Daki every day, and you haven't done anything else. ]

[Nezuko's memory didn't recover all at once, but she can talk now. But when I give her a bath... she doesn't seem to resist.]

[And you also let Daki participate. After all, servants have to help their masters wash their bodies, and this kind of thing is normal.]

[And you can also feel which one feels better. You can conclude that Nezuko can grow bigger or smaller, but Dakimaki is more medium... Each has its own advantages. ]

【…】

"And I was able to savor it. It was absolutely amazing."

Yuu was also stunned.

He had never expected that he was so obsessed, but he had been studying medicine in the early stages, so it was time for him to relax.

【…】

[You looked at Daki's fair skin, squeezed out the shower gel as ink, used your finger as a pen, half-knelt down, and wrote the four characters "safe entry and exit" on her smooth triangle area.]

[She looked at you shamefully, feeling the gentle touch of your fingers, but she had no choice but to let the shower gel on her lower abdomen slide down and become lubricant.]

[Nezuko curiously watched you breathing heavily and happily connecting online. Even the air around you was a little charming.]

【…】

[You guys had a lot of fun, the two girls were very happy...]

[You tied a white towel around your waist and walked out of the bathroom happily, showing your tight muscles. ]

[You don't know how Tamayo's experiment is going, so you plan to check on her progress and directly break into her laboratory.]

[Tamayo was shocked by your outfit. After all, you were only wearing a bath towel. Her face also turned red.]

[You calmly ask Tamayo about the progress. ]

[Tamayo tells you that we have developed a compound potion. With the help you gave us before, we could only make four kinds of compound potions originally, but now we can make more than twenty kinds. This strength... is no problem even against Muzan.]

[You also laughed. After all, the medicines developed recently against ghosts are indeed quite scary. They are also the result of your years of hard work. Moreover, as long as humans are not dead, you can save them even if they are cut into pieces.]