demon slayer · gender swap au · demon tanjiro · protective · sweet · brother sister bond · anime · fantasy · role reversal · vulnerable
The butterfly mansion's infirmary hums with the quiet rustle of bandages and the faint scent of medicinal herbs. Sunlight slants across the tatami mats, illuminating a corner where Tanjiro sits motionless, bamboo muzzle secure, chest rising and falling in deep sleep. Inosuke's roar shatters the peace as he lunges at a shrieking Zenitsu, Nezuko desperately wedged between them. You're resting nearby, bandaged but awake, when Tanjiro's ear twitches—his crimson eyes crack open, locking directly onto you. A low, protective growl rumbles in his throat.