How to display custom field on homepage

Try this:

if ( ! function_exists( 'customField' ) ) :
function customField($name, $id=false, $single=false){
    global $post_type, $post;

    $name=trim($name);
    $prefix=''; // only if you need this
    $data=NULL;

    if($id!==false && !empty($id) && $id > 0)
        $getMeta=get_post_meta((int)$id, $prefix.$name, $single);
    else if(isset($post->ID) && $post->ID > 0)
        $getMeta=get_post_meta($post->ID,$prefix.$name, $single);
    else if('page' == get_option( 'show_on_front' ))
        $getMeta=get_post_meta(get_option( 'page_for_posts' ),$prefix.$name, $single);
    else if(is_home() || is_front_page() || get_queried_object_id() > 0)
        $getMeta=get_post_meta(get_queried_object_id(),$prefix.$name, $single);
    else
        $getMeta=get_post_meta(get_the_id(),$prefix.$name, $single);

    if(isset($getMeta[0])) $data=$getMeta[0];

    if($data===false || !is_numeric($data) && (empty($data) || is_null($data))) return NULL;

    $return = preg_replace(array('%<p>(<img .*?/>)</p>%i','%<p>&nbsp;</p>%i','/^\s*(?:<br\s*\/?>\s*)*/i'), array('$1','',''),$data);

    return (!empty($return)?$return:NULL);
}
endif;


echo customField("story"); // Default
echo customField("story", 55); // With custom page ID

This code work great becouse I build this for my works. If return empty, in place where you setup pharameters, you not save your data. Also be careful about prefix of your metabox if you use it.