(charCode >= 0xac00 && charCode <= 0xd7a3) ||
    (charCode >= 0x1100 && charCode <= 0x11ff) ||
    (charCode >= 0x3130 && charCode <= 0x318f) ||
    (charCode >= 0xa960 && charCode <= 0xa97f) ||
    (charCode >= 0xd7b0 && charCode <= 0xd7ff)