What I really love in Japan is to discover the new drinks coming every months. Following as well the seasons, I try all of them like a kid, jumping to any combini (convenience store) on my way to office.
Working in a Japanese R&D team should be so fun!

Pepsi Mont Blanc, Cola with a really interesting taste of coffee/chocolate. Really liking it.

Gokuri, a classic with its grapefruit blue bottle. This time, I tried the Apple taste with really tiny pieces of fruits inside. Really good and fresh!

Goo New, strawberry milk (exists as well with pineapple flavor). Wonderful!