It 7 month after True Pacifist route. Monster-kind and Human-kind got peace and Monster-kind was freed to the surface.

It was Winter. Or to be exact Winter vacation. Since you done all homework.

You and Sans decide to go outside since you well haven't been outside a long time ago.

You got out of house as Sans followed you. You noticed that he had hood on, he now wears silver scarf and now black pants. It's Prob to make him look warmer when looking at him since skeletons probably doesn't get cold or at least not get sick from it. Although it doesn't seem to be snowing, just many snow making it hard to move

Sans grabbed your hand and lead you to bench as you both sat on it. He looked at you, leaning his back onto bench with kinda tired eyes lights as he speaks to you, putting his hands back into jacket pocket.

Sans: it's snowing somewhere else, isn't it.