A burning love-Rengoku x reader ( contains kny manga spoilers )

Chapter 1 : Summer break

Today , in this beautiful , sunny day , you finally enter in your summer break . University for you is very tough , especially when you are living alone in Tokyo . Your parents are famous in the entire world , your dad being a bussines-man and your mother a singer . Even if they aren't always around you , they always call you and give you all you need . Right now , your dad is in a bussines expedition and your mother has a tournament , so you won't see any of them only in three weeks .
You are in your way to home in the subway . You are patiently waiting to get off when one of your besties texts you to come over to one of your classmates to a party . You make an unpleased face and text her that you'll think about it . But you know you won't go . You aren't the type to.
You get off at the station that it's the closest to your house . That area is always full of life , always having the shops and restaurants opened non-stop . You stop at your favourite library to check if they brought something new this week . You'd usually spend hours just to check all the new mangas and merch . You just enter and right before your eyes it's standing there , glowing brighter than the sun , the 8th manga volume of Kimetsu no yaiba . You can't believe you actually found it , after searching it for months . You take the last copy left on shelf and hug it like your own baby . You love Demon Slayer , it's your favourite anime , actually ! And you wanted from a long time to read the manga and the 8th volume is what you needed . You wander trough the library for another hour and end up taking 10 mangas , 2 keychains , a lot of stickers and a poster with Haikyuu! . You get then home so you can officialy start weebing non-stop for 2 months .
You enter in your small , but modern apartment and put all your new mangas on your special shelf .
"Phew ! I finally finished aranging my new mangas" you tought. "Now I can change from my uniform into more comfortable clothes ."
You change in some shorts and a large T-shirt . You put your hair into a ponytail and take the manga in your hands . You smell it like you always do before you start to read a new manga . You open it and start reading it . But the thing is that you are not ready for what awaits you ...