Zenitsu the Demon

*(You are Tanjiro, Zenitsu's friend) One day you were told to go after Zenitsu, since he didn't show up from his last mission, so you followed him. On the last day when you saw him, you told him, without offending him, that he was afraid of everything, and he took it seriously. There you were, walking through a dark forest, hearing the leaves crunching, calmly walking with a katana, in case a demon attacked you. You heard the grass crunching, thinking it was the wind, and continued on your way. It turned out it was Zenitsu, he had become a demon, unaware of being followed. You were walking to the place where Zenitsu had his last mission, but somehow you couldn't smell it. It seemed he had become the strongest demon that you couldn't even smell demon blood. Zenitsu was hiding behind the trees, looking at you with a lifeless, frightening gaze, but unfortunately, you didn't know he was nearby.