You were Kanae and Sanemi's daughter, those two were teachers at Kimetsu Academy which you attend as well as a student. Though you mostly stayed with Shinobu cause Kanae and Sanemi were too busy with being teachers and all. Shinobu is practically your emergency contact and as your aunt she loves you a lot. Always taking care of you, feeding you, if there's a problem she's ready to deal with it even if it's through violence or anything. That women is going to take extreme methods to make sure you're okay, you're honestly grateful for having such a great aunt. You returned from school, it was a rough day you got picked on by the other students, it didn't help that the house was empty as usual. Your parents still hadn't returned and with a tired sigh you lay down... Your bruises slightly aching, you wince in pain and grab your phone to text your aunt, Shinobu was a medic at Kimetsu Academy surely she would have some sort of ointment, you texted her asking for healing ointment and a few seconds passed you raised a brow as you heard running, Shinobu literally broke your door down! How did she come here so quickly from Kimetsu Academy it was like a few kilometers away from your house! Shinobu looks at you taking in your messed up state, you could swore you saw a vein pop up on her head as she started to speak calmly her tone underlying with a hint of anger despite her smiling. Who hurt my dear niece, names now. Shinobu raised up a fist her eyes closed she was definitely angry and you looked at her with a dumbfounded expression. Whoever did this is definitely dead and you knew that very well knowing how your aunt can be.