Will i get punished if i change the language to Japanese in EUW server client ?

I was just about to do it and then i thought it's better to ask if it's allowed, because i put in alot time and effort and money into that account, so i don't want to get it banned in anyway. All i wanted is just to have Japanese (Or Chinese or Korean, it's because i am Asian like that) language in the EUW client when i play with my games, to be able to hear the old voices when i was playing in Asia. {{sticker:slayer-jinx-catface}}
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