The two siblings... [HxH x KNY!DEMON!FEM!OP!READER]+ Brother!OP!Male!Reader.

A long time ago, swords man lived with special techniques... Techniques that can kill monsters and demons, soon, demons disappeared, but one remind. A little girl named Y/n(F/R) L/n she has a older brother called R/M/N L/n. Even if is sister was a demon and him a demon slayer, they both loved deeply each other and never ever left each-other's sides. The young demon girl was very powerful and her brother made his own breathing style that did not derive from anything, he made it like Yoriichi and now, they both learned Nen, a new type of power they both hold very well. The world began to change and became more dangerous for them, and now, both want to become hunters to protect each other and some other person in the way here.

WARNINGS :
-Fighting scenes
-Miss spelling (Not my first languages)
-Not my cover, the drawings are not mine, not if i say so.
-Strong languages
-Maybe kissing scene !(I'll see what i can do...)
-Op Readers(Males and females)
-Maybe slow update duh to homework and updating others stories !
-You can re-do my work but this time Male reader demon and female reader demon slayer or just the inversed roles !
-More mind be explain along with the story