var getRandomName = function() {
    // ゥは使わない気がするので一旦外す
    var chars = 'アイウエオカキクケコサシスセソタチツテトナニヌネノハヒフヘホマミムメモヤユヨラリルレロワヲンヴガギグゲゴザジズゼゾダヂヅデドバビブベボパピプペポァィェォッャュョー'.split(''),
        prefixes1 = 'ウクグツフブプヴ'.split(''),
        prefixes2 = 'ツフブプヴ'.split(''),
        prefixes3 = 'キシチニヒミリギジヂビピ'.split(''),
        length = Math.max(Math.floor(Math.random() * 9), 2),
        name = '';
    
    while (name.length < length) {
        var rand = Math.floor(Math.random() * chars.length),
            c = chars[rand];
        if (('ンァィゥェォッャュョー'.match(c) && !name.length)
            || ('ァィゥェォャュョ'.match(c) && (name.length + 2) == length)
            || ('ッ'.match(c) && (name.length + 1) == length)
        ) {
            continue;
        }
        if ('ィェォ'.match(c)) {
            var rand = Math.floor(Math.random() * prefixes1.length);
            name += prefixes1[rand] + c;
        } else if ('ァ'.match(c)) {
            var rand = Math.floor(Math.random() * prefixes2.length);
            name += prefixes2[rand] + c;
        } else if ('ャュョ'.match(c)) {
            var rand = Math.floor(Math.random() * prefixes3.length);
            name += prefixes3[rand] + c;
        } else {
            name += prev = c;
        }
    }
    return name;
};