Cain finally reaches his twelfth birthday, the day he can register as an adventurer. He heads straight to the guild to sign up, but some older adventurers pick a fight with him, and he's saved by a red-haired man who looks very familiar...
There's no need for "Sir." I'm only twelve.
لا حاجة لـ"ساما". عمري 12 فقط
Je n’ai que 12 ans,
alors vous pouvez bien me tutoyer.
Nessun "signore" per favore.
 Ho solo dodici anni.
Não precisa chamar de "senhor".
Eu só tenho doze anos.
Да можно и не на «вы», 
мне же всего двенадцать.