Pepsi Energy Cola

I didn't know this existed, and I don't know if it exist outside Japan, please let me know if it does.
So it's an energy drink, made by Pepsi, having the name Pepsi, so I could not not buy it, being the Pepsi master....
Well the liquid has the right color as you can see on this picture:

looks like pepsi

But the taste is completly wrong.... well it doesn'T taste bad, but it really doesn'T even come close to tasting like... a cola. It taste like.... water with an samll fruity after taste.
And I'm still tired so it's not really effective!