*おやすみ Goodnight*(Killua x Female Reader)

Hello sinners, I am creating a sad fanfic today, but don't worry, it is cute and wholesome.
IMPORTANT STUFF:
THEY ARE 18.
This story might break you.
Smut in some chapters.

Now for the description:
Killua had run away from his abusive household for a new life, he moved into a nice apartment. The city he now lives in is known for rainfall throughout most of the year and its beautiful blue flowers. One day he met his neighbor, Y/N who was very pretty. They became best friends over time. Killua and Y/N started having feelings for each other, but would never tell one another.
Basically, DRAMA, DRAMA, and more drama.