Inquire about the deal where you buy one and get a set meal for free, only two people can purchase it, and tickets can only be bought for the next day.

The “Buy One Get One Free” tickets are real and usable, very cost-effective, and he will give you two PDF tickets.
For just one admission ticket, there are no other tickets included. I bought the one for Tokyo, and the audio guide is not very meaningful; it seems to be 1170 yen.