I discovered these on a trip to Tokyo in December 2019. At the time, I was very excited about buying as many Kit Kat flavors as possible and did not pay much attention to other chocolates. It was not until we returned to Boston that I discovered how amazing these bite-sized chocolate squares are for a sweet snack. Of course, I became obsessed and read all about them to learn that there are hundreds of flavors. In Boston, I tried looking for them in many Asian grocery stores, but only a limited selection is available in the US. My favorite ones have mochi inside, like this matcha one. I also love the cute packaging. Check out their online store for other flavors! Source: <https://www.japancandystore.com/tirolg>