Y/n is killua's brother/sister who had been hidden from the family by their mother. They are found by their brother killua . [ more descriptions about y/ n in the first chapter] Enjoy 😊!

What happens when Hisoka decides that he want to take the hunter exams with the most important person in his life, his sister. When (Y/n) goes with him she meets all kinds of people but a certain 4 takes her interest. Will (Y/n) finally find the friends she wants or will she turn to the life of darkness. (Pairs) ''Hisoka-Nii-Chan, look....I made some new friends.''