Impostor (Mi au)

Impostor is a typical yellow Crewmate from Among us, but with Sans' clothes

Inpostor is calm and relaxed, but his expression is serious in his confrontations with the assassins of his dimension. He is cool with the crew members.

There is a kind of Ketchup in his dimension called "Golden Ketchup" (it's like ketchup, but it's yellow and like hot sauce)

Impostor, despite his appearance as a common Crewmate, he works as a secret assassin hunter.

This character is like a combination of Among us and Undertale.