To remove her staff add in negative prompt "holding, staff".

Default outfit:

kyouka, default, blue kimono, blue ribbon, japanese clothes, long sleeves, wide sleeves, yellow bow

Halloween outfit:

kyouka, halloween, black capelet, black dress, black skirt, fur-trimmed hood, fur-trimmed capelet, fur-trimmed dress, hooded capelet, fur-trimmed skirt, fur-trimmed sleeves, hood up, long sleeves, wide sleeves, window, yellow bow

Summer outfit:

kyouka, bare shoulders, bikini skirt, flower, frilled bikini, frills, hat, off-shoulder bikini, purple bow, straw hat,swimsuit, two-tone bikini