Can I use the korean client to play on Euw ?

How to change your client to Korean! (Any Region) [Easiest way]
Hey there! Since I feel like there are alot of videos not being correct I felt like making one myself about this client. (Discord: (For Questions and to build the best community!)
So as you see in the video he is using the Korean client to play on Euw, and I was wondering if I can do it to play on my Euw account because I love the Korean voices. Is that ok to do ? Because I dont want to to get banned. Thanks in advance. {{champion:55}}
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