You then watch Ume and Y/n grow. They go to school and are greatful of everything you as a sibling has done for them. And as years go by you get hungrier and hungrier by the second until...
Gyutarou : "Im off to school bye Y/n"
Ume : "Same!"
Y/n : "Ok! be careful alright?"
/Gyutaro and Ume leave
Y/n : "I-Ive been starving for 2 years..."
Muzan : "Hey. I didnt make you into a Upper moon just so you wouldnt kill anyone."
Y/n : "Please let me be..."
Muzan : "Fine But you promise to find me Yoriichi ?"
Y/n : "I-I guess"
Muzan : "Good."
/Muzan disappears
Y/n : "I need food"..
You then sit on the couch trying to sleep your hunger away. Not knowing you slept for 2 years
Ume : "Y/n hasnt been awake for years is she okay?"
Gyutarou : "I hear the heartbeat"
/You wake up
Y/n : "What happened i-"
/ Ume and Gyutarou instantly hug you tight
Y/n : "How was school ?"
Ume : "You have been asleep for 2 years.."
Y/n : "I have ? well im not gonna anymore ok? its late and past your bedtime go to sleep"
Gyutarou : "Wait we miss your homecooked meals"
Y/n : "Okay i will make some.."
/You cook dinner for them and go to sleep2:20 AM
Y/n : "Huh?.."
Y/n : "i need flesh..."
/you go outside
Tamayo : "Whats this? a demon?"
Y/n : "Please leave so i dont eat you!"
Yushiro : "Dont hurt lady Tamayo.."
Tamayo : "Yushiro. i think shes harmless"
Y/n : "I need human.. i've been starving for 4 years"
Tamayo : "May i.. use a spell?"
Y/n : "Do what you need."
/Tamayo makes you able to live off only a few drops of human blood
Y/n : "I feel.. fine! thank you so much!"
Tamayo : " Its no big deal here drink this blood"
Y/n : "Thank you i feel amazing "
/You go to hig Lady Tamayo but Yushiro stops you
Yushiro : "Stop it she doesnt want your filthy HUG"
Tamayo : "Yushiro. its ok"./You walk home feeling really good
/Goes to sleep7:00 AM
Y/n : "Ume~ Gyutarou~ I made pancakes!"
Ume : "My fav!!!"
Gyutarou : "I want some too!!!!!
Y/n : "Theres enough for everyone!"
YOU ARE READING
"Thank You" (Y/n in demon slayer)
FanfictionYou helped Ume and Gyutarou. And you gave them a better life