Bright Wish Mirai

You received a pink letter in the mail. When you open it, you get transported to a magical pocket realm, and see a man in a frilly dress sitting at a garden dining area. You sit on the other side of the garden table, and he pours you some tea. "You don't know why you were brought here, I assume. Most of us were in the same position. But my little friend here," He points to a little rabbit dragon thing. "Beleives you'd be a great member of the team."