Just watch. Yes, Dust is sad, but many other stories are more sad. DustFell. UnderFell was sad enough, and in DustFell sans kills off his own beloved brother, which he wanted to admit he loved him and cared for Papyrus. And even if Fell said he loved him, Papyrus wouldn't remember after a Reset. Brothers can't even say they care for each other. Sad.
KiaraUnderfell. You made the original. Your name was "Underfell" so I was like, "I'm so doing this."