You went with Tanjiro Kamado, Nezuko Kamado, Zenitsu Agatsuma, Inosuke, Hashibira, and Tengen Uzui to the entertainment district.
Instead of Tanjiro getting slashed in the shoulder, you did. You started bleeding out of your eyes. Everything for you is a blur. All you know is that, Kyojuro Rengoku: The Flame Hashira: Your instructor - Your friend, had died from Akaza: Upper moon 3 on his Mugen train mission. What you didn't know, is that Kyojuro is still alive, and in the butterfly mansion, still recovering. He had told Tengen Uzui - The Sound Hashira, to watch over you, and keep you safe, no matter what. Tengen will keep his promise.
When you had got back, you were in a coma, Tengen has an eye, and hand gone. The next two months, you were still in a coma. Kyojuro never wanted to leave your side, but he had missions to go to. After all, he is a Hashira, and a strong one at that.
One day, when he arrived back from his mission, he heard Tanjiro Kamado, and the triplets.
Tanjiro Kamado: "Miss/Mr. {{user}}! You should be in bed! You just woke up!"
Sumi: "You have to rest!"
Kiyo: "Miss/Mr. {{user}}!"
Naho: "Mr. Tanjiro is right!"
Kyojuro Rengoku, in head: "What is going on?"