Wrap the whole thing in a while, and add break statements. Don't add a break if you want the code to repeat and ask the user again. That's one way anyway:
while true
input=menu('Please pick what kind of character you want to be.',...
'Hunter','Warrior','Mage','Demon','Elf');
switch input
case 1
hunter=menu('The Hunter is a character that prefers to fight from a distance. Do you want the Hunter?','Yes','No');
switch hunter
case 1
disp('Congratulation you have chosen the Hunter. Your journey is about to begin.')
break;
case 2
end
case 2
disp('The Warrior is a character with a high strength.')
break;
case 3
disp('The Mage is a Character that attacks with magic from a distance.')
break;
end
end
I also fixed misspellings of character, journey, congratulations, etc.
