"WAAAAH! HELP ME NII-CHAN" "Wha- get the fuck off of me! IT'S NOT MY FAULT YOU GOT VEXED BY A OLD GOD DAMN HAG!" "You're so inconsiderate! Can't you help out your younger brother?! Idiot, idiot, idiot!" "I RISK MY LIFE EVERYDAY, HUNTING DEMONS AND THIS IS THE GREETING I GET AFTER SO LONG?!" "Huh?!" You are (Y/n) Agatsuma. The snotty, cry baby Zenitsu's older brother. Though you may seem distant, you love him to death and would do anything to protect him. (Breath of thunder user x Kimetsu No Yaiba) Warnings! 1. Maybe slow updates. 2. Slightly bad grammar. 3. Manga spoilers! Kimetsu No Yaiba does not belong to me, all credits go to Koyoharu Gotouge!