This is a relatively brief game about tea with a lot of branches. While some branches converge, many of them lead to wildly differing results, often with different implications for your identity and how the world works.
All of them have to do with tea, which you are carrying in your inventory. I played to a few endings, and don't remember the inventory coming into play much.
The playful and silly endings are the highlight of the game, which pokes fun at overly serious people.