Kobo Aura One - Overdrive support

Hi everyone ,
I just got a Kobo Aura One from Ebay.
Until now I was using Amazon Kindle devices , but the seamless overdrive integration on Kobo Aura One was the biggest reason I switched to Kobo.
I live in US and unfortunately the device that I got is a Japanese version, and it seems like the Japanese version doesn't have support for Overdrive, yet.
Is there any way I can add the Overdrive function on my device?

Thanks in advance,
Donat.