Where can I buy letao cheesecake?

Where can I buy letao cheesecake in Tokyo, Osaka or Kyoto? Thanks!

For a limited time, they are sold in department stores.
https://www.letao.jp/saiji/
Otherwise, cheese cake is not sold, series shop in Tokyo Omotesando.
http://www.glaciel.jp/

You can buy at Narita Airport, but I do believe you must the security area first. Good choice if you want to bring the cheesecake home with you as long as customs allows it.

Just like amenoji said, it is definitely available at the airport and it's best to buy it there, to make sure that it's fresh until you get home to your country and also so you won't have problems with security. They will also give you an ice pack for the cheesecake for free. It's available in all the major airports (like Narita, Nagoya, Osaka) since I was able to buy it in those airports from my previous trips to Japan.