Kibutsuji High ( Y/n in KNY )

Never dying memory

Nezuka : "Y/n!!!! Wanna hang out after school?"
Y/n : "Sorry! I have um.. plans!"
Nezuka : "You never say no to hanging out ever since 2nd grade !!"
Y/n : "Sorry, its really important!!"
Nezuka : "Fineeee but stay safe alright ???"
Y/n : "Yea yea eheh"
Y/n : "See you tomorrow Nezuka!"
Nezuka : "Same for you Y/n!"

"Ok.. so Yushiro's house... Russiancat street number...87? Wait 78!!"
"Ok hmmm an uber is so expensive! bye allowance for the month I guess :("
"Ok now we wait"

20 minutes later

"Finally my uber is here!!"
Y/n : "Heyyy uber?? "
Driver : "Uhm.. Y/n Kamado, correct?"
Y/n : "Thats me!!"
"He seems nice"
/You get in
Driver : "Russiancat street is abandoned why do you wanna go there, ms?"
"What do i say??"
Y/n : "To uhm explore? "
Driver : "Okie dokie"
10 minutes later
Driver : "We're here! heres a snickers thank you for choosing Uber please rate 5 stars!"
Y/n : "Yea sure"
"I swear these people are living ads"

/You get out the car, pay your driver then go in the house
"Okay number 78 right place!"
"Hmm looks brand new compared to the outside"
Yushiro : "Hey! Thanks for actually coming!"
Y/n : "Oh no problem, wheres the picture?"
Yushiro : "In my room with the black door"
Y/n : "Okay!"
/You open the black door
Y/n "O theres no light whatsoever"
Yushiro : "Turn on the lights"
Y/n : "Okay"
/You look around his light proof room
Y/n : "O heres the picture and book, I'll keep it safe!"
Yushiro : "Once again, thank you very much!"
Y/n : "Honestly, its my pleasure!"

Y/n kept it safe and read the journal and told everyone the real story of demons. Not long after, It gets correctly educated across the globe because of how inspiring it was. They then built a statue of all the hashiras and Tanjiro, Inosuke, Nezuko and Zenitsu and many other heroes
"Haha look at the bamboo mouth one! it looks like me, right Y/n?"
"Woah sis look! the lighting yellow hair is literally me!"
"That Obanai guy is handsome, does he remind you of anyone? ;)"
"These guys are heroes!!"
"They look just like us !!"
After some time, you give the copies to your kids and tell them to take care of it correctly, then to their kids, then to theirs, and so on. So the story of heroes will never die out.