(Toby Fox owns UnderTale, and I'm not a very big Sansdyne shipper but there's less than five Sansdyne books on Wattpad so I might as well try out something new.) Sans tends to accompany Papyrus on his training. Underground, he always dropped off his brother at the Captains house. However, on the surface, one day he decides to go inside and finally talk to this Undyne he heard so much about. She keeps giving him this look, and Sans isn't sure how he feels about this.All Rights Reserved