Ascend The Multiverse|多元宇宙を昇る [Kny x Black!Reader x Countryhumans]

Checkpoint|チェックポイント

Oops! Tanjiro with buzzcut jumpscare! All credit goes to Tamah Chań for the beautiful atrocity 😍. You can find them in Quotev.

Anyway, back to status quo.

Congratulations! You have completed the Final Selection Arc. Your progress has been saved. Have you slept well recently? If yes, good for you. If no, neither have I!

Would you like a summary of what you have encountered so far?

                  𝚈𝚎𝚜                              𝙽𝚘

                ࿈𝚈𝚎𝚜࿈                           𝙽𝚘.

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We start off with the ghosts of some dead countryhumans who have been revealed to be the ones watching you since the very beginning. It is against their will and are being hosted by a mysterious masked figure known as Dahlia, who is also the culprit behind your transfer to Demon Slayer. Their motives are unknown, only shown to be able to harm the ghosts who are forced to be an 'audience' to your adventures. Pray that they don't watch you bathe.

Meanwhile, 20 year old Tanjiro struggles to cut the boulder for the umpteenth time. He slowly gets discouraged and fears that his delay might cause Nezuko to never wake up from her coma. Surprise surprise, he meets Uppermoon One himself and almost shits his pants.

Basically, he fights Kokushibou, pulls the axe trick like he did to Giyuu but this time his katana lands a hit, and gets knocked out. When he wakes up, he sees you and becomes elated. After you offer to train him, he accepts without hesitation.

During the first few weeks of training, Tanjiro's eating habits are fixed and he adjusts to a strict training schedule. You teach him during the day, Kokushibou during the night. He can tell your demon companion holds some sort of disdain for him without reason. Reason being he's the successor of sun breathing based off the hanafuda earrings that belonged to Yoriichi.

You 'celebrate' being trapped in Demon Slayer for 10 years, time travel aside. Having a brief moment to yourself, you pay a visit to the Tanaka family that took you in and had such a terrible end. During this, the wavering presence you've felt since the first day you got isekai'd appears briefly. You only see pale eyes but that is enough to make you wary on who that could be.

Tanjiro gets stronger as months go by. While this happens, he develops a crush on you since you are the first woman to be close to him in a non-familial manner. He tells himself it will fizzle out with time.

But of course, Urokodaki is not an idiot and quickly suspects something is going on with Tanjiro. One thing leads to another and he finds your house, Kokushibou and (embarrassingly) you during the onslaught of your monthly periods.

You all have a talk and he realises that you were the person who saved his three students from the Hand Demon by killing it. That eases his guilt a bit for all the 11 students that died under his wing. After you convince him that Kokushibou was practically neutral and wouldn't attack anyone, he relented and allowed you to continue training Tanjiro with the promise of safety.

At the same time, Kokushibou finds out the real reason you were helping Tanjiro; his demon sister Nezuko. For a moment, he's relieved that you appeared clueless on the whole successor thing. That is until you drop the idea of turning a demon back into a human on him. He believes it can't be done and would break all known rules of demons and the status quo.

However, having abandoned the Kizuki, he knows that Nezuko will become a target to Muzan just as he is. Only that she might get killed. Reluctantly, he agrees to help just because you are involved.