DAWN Avatar Robot Cafe; Orihime Diner Reservation Question?

So I was looking to reserve a spot for the Orihime Diner for when I visit Japan this summer, but I had some confusion about the 4,000 yen reservation fee…

On the reservation site, it says that the fee includes the seating, one meal, and one beverage, but when I click to refer to the menu (https://dawn2021.orylab.com/en/menu/) it shows no prices near the meals (as expected) but prices next to the drinks and none near the desserts.

So I was thinking that this could mean two things,

1) it includes the meal, but the type of drink changes the price, and the desserts count as a meal option rather than an addition to the meal (more likely).
2) it includes the meal and a dessert, and the drink is extra, and the reservation site meant the reservation includes 1 meal and 1 dessert, and the drink isn’t included but an addition to the order

Has anyone been to the Orihime Diner and can tell me what’s included in the reservation fee, and what to expect when I order there? My Japanese is weak so I wanna be prepared when I go. Thanks!