I chose Usseewa for Killer Sans because it literally means STFU in Japanese. I put the Teto cover because 1.shes awsome 2. She's very red 3. She's a chimera (which is a type of demon if you don't know)
Yes I get the song is more toward insulting rather than actually killing someone like Killer Sans and yes it could be a Fell Sans song but I felt like Killer was the right choice because she mentions knives in the song which is more of a Killer thing than a Fell thing.
Also, I feel like Killer would have stiffer movements compared to Fell so I chose this as a Killer Sans song.
![](https://img.wattpad.com/cover/372314442-288-k25966.jpg)
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Vocaloid songs that would be Sans AUs' theme song
Randompls note this is based off of the lyrics of the songs, the Sans' personality, and the MVs