それぞれ好きな異性と過ごしたら…という妄想。
魔理沙がちょっと手に持ってるものわかりにくいですが、指輪です。

去年のクリスマス＞post #1327095

How they each spent it with their own beloved member of the opposite sex... is what I fantasized about.
It's a little hard to see what Marisa is holding in her hands, but it's a ring.

Last year's Christmas: post #1327095