Hi @Tusiaaa, let me see if I can help out here!
I have translated your question to English as this is an International forum, please post any replies in English and it will be easier for me and other users to assist you.
There is no setting available in the phone capable of changing the font in the device, however there may exist apps in Play Store capable of doing so. keep in mind though that Sony cannot not guarantee the performance of any applications manufactured by a third party.
I hope that answered your question!
