I did a lot of traveling right about when I first joined Mastodon! This was something I found in Tokyo, home of all the best Kit Kat bars. Apparently the 'Chocolatory' bars are the Maserati to the common Kit Kat's Honda. A bit pricey, but such great tea and sake flavors! Really wish they'd expand their offerings here in the west. 
@zigg We can get the regular green tea Kit Kats here, and they're easy to find when I visit Asia, but I haven't seen the Chocolatory line outside Japan, which really sucks because I love the genmaicha!